Home / 812,698.47-1,122,277.77-608,394.70

Finding the Fourth Proportional to 812,698.47, 1,122,277.77 and 608,394.70

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Solution

The fourth proportional to 812,698.47, 1,122,277.77 and 608,394.70 is: 840,149.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,698.47 : 1,122,277.77 = 608,394.70 : x
  2. Step 2: Convert to fraction form
    812,698.47/1,122,277.77 = 608,394.70/x
  3. Step 3: Cross multiply
    812,698.47x = 1,122,277.77 × 608,394.70
  4. Step 4: Simplify right side
    812,698.47x = 682,787,847,195.82
  5. Step 5: Solve for x
    x = 682,787,847,195.82/812,698.47
  6. Step 6: Final answer
    x = 840,149.05

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1.5x scale

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.