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Finding the Fourth Proportional to 576,905.60, 865,358.40 and 417,473.30

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Solution

The fourth proportional to 576,905.60, 865,358.40 and 417,473.30 is: 626,209.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,905.60 : 865,358.40 = 417,473.30 : x
  2. Step 2: Convert to fraction form
    576,905.60/865,358.40 = 417,473.30/x
  3. Step 3: Cross multiply
    576,905.60x = 865,358.40 × 417,473.30
  4. Step 4: Simplify right side
    576,905.60x = 361,264,026,930.72
  5. Step 5: Solve for x
    x = 361,264,026,930.72/576,905.60
  6. Step 6: Final answer
    x = 626,209.95

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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.