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Finding the Fourth Proportional to 659,297.66, 993,887.92 and 615,354.88

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Solution

The fourth proportional to 659,297.66, 993,887.92 and 615,354.88 is: 927,644.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,297.66 : 993,887.92 = 615,354.88 : x
  2. Step 2: Convert to fraction form
    659,297.66/993,887.92 = 615,354.88/x
  3. Step 3: Cross multiply
    659,297.66x = 993,887.92 × 615,354.88
  4. Step 4: Simplify right side
    659,297.66x = 611,593,781,745.05
  5. Step 5: Solve for x
    x = 611,593,781,745.05/659,297.66
  6. Step 6: Final answer
    x = 927,644.40

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.