Home / 1,122,786.60-1,684,179.90-412,667.70

Finding the Fourth Proportional to 1,122,786.60, 1,684,179.90 and 412,667.70

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Solution

The fourth proportional to 1,122,786.60, 1,684,179.90 and 412,667.70 is: 619,001.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,786.60 : 1,684,179.90 = 412,667.70 : x
  2. Step 2: Convert to fraction form
    1,122,786.60/1,684,179.90 = 412,667.70/x
  3. Step 3: Cross multiply
    1,122,786.60x = 1,684,179.90 × 412,667.70
  4. Step 4: Simplify right side
    1,122,786.60x = 695,006,645,719.23
  5. Step 5: Solve for x
    x = 695,006,645,719.23/1,122,786.60
  6. Step 6: Final answer
    x = 619,001.55

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.