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Finding the Fourth Proportional to 614,569.70, 921,854.55 and 314,950.70

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Solution

The fourth proportional to 614,569.70, 921,854.55 and 314,950.70 is: 472,426.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,569.70 : 921,854.55 = 314,950.70 : x
  2. Step 2: Convert to fraction form
    614,569.70/921,854.55 = 314,950.70/x
  3. Step 3: Cross multiply
    614,569.70x = 921,854.55 × 314,950.70
  4. Step 4: Simplify right side
    614,569.70x = 290,338,735,820.69
  5. Step 5: Solve for x
    x = 290,338,735,820.69/614,569.70
  6. Step 6: Final answer
    x = 472,426.05

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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.