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Finding the Fourth Proportional to 576,933.60, 865,400.40 and 417,501.30

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Solution

The fourth proportional to 576,933.60, 865,400.40 and 417,501.30 is: 626,251.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,933.60 : 865,400.40 = 417,501.30 : x
  2. Step 2: Convert to fraction form
    576,933.60/865,400.40 = 417,501.30/x
  3. Step 3: Cross multiply
    576,933.60x = 865,400.40 × 417,501.30
  4. Step 4: Simplify right side
    576,933.60x = 361,305,792,020.52
  5. Step 5: Solve for x
    x = 361,305,792,020.52/576,933.60
  6. Step 6: Final answer
    x = 626,251.95

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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.