Home / 1,281,438,400,808.60-1,768,386,744,289.50-695,488,255,472.65

Finding the Fourth Proportional to 1,281,438,400,808.60, 1,768,386,744,289.50 and 695,488,255,472.65

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Solution

The fourth proportional to 1,281,438,400,808.60, 1,768,386,744,289.50 and 695,488,255,472.65 is: 959,774,742,984.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,438,400,808.60 : 1,768,386,744,289.50 = 695,488,255,472.65 : x
  2. Step 2: Convert to fraction form
    1,281,438,400,808.60/1,768,386,744,289.50 = 695,488,255,472.65/x
  3. Step 3: Cross multiply
    1,281,438,400,808.60x = 1,768,386,744,289.50 × 695,488,255,472.65
  4. Step 4: Simplify right side
    1,281,438,400,808.60x = 1,229,892,211,786,863,674,916,864
  5. Step 5: Solve for x
    x = 1,229,892,211,786,863,674,916,864/1,281,438,400,808.60
  6. Step 6: Final answer
    x = 959,774,742,984.75

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.