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Finding the Fourth Proportional to 627,833.68, 935,836.13 and 577,445.20

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Solution

The fourth proportional to 627,833.68, 935,836.13 and 577,445.20 is: 860,728.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,833.68 : 935,836.13 = 577,445.20 : x
  2. Step 2: Convert to fraction form
    627,833.68/935,836.13 = 577,445.20/x
  3. Step 3: Cross multiply
    627,833.68x = 935,836.13 × 577,445.20
  4. Step 4: Simplify right side
    627,833.68x = 540,394,081,255.08
  5. Step 5: Solve for x
    x = 540,394,081,255.08/627,833.68
  6. Step 6: Final answer
    x = 860,728.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.