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Finding the Fourth Proportional to 627,846.68, 935,855.50 and 577,458.20

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Solution

The fourth proportional to 627,846.68, 935,855.50 and 577,458.20 is: 860,747.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,846.68 : 935,855.50 = 577,458.20 : x
  2. Step 2: Convert to fraction form
    627,846.68/935,855.50 = 577,458.20/x
  3. Step 3: Cross multiply
    627,846.68x = 935,855.50 × 577,458.20
  4. Step 4: Simplify right side
    627,846.68x = 540,417,432,490.10
  5. Step 5: Solve for x
    x = 540,417,432,490.10/627,846.68
  6. Step 6: Final answer
    x = 860,747.46

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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.