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Finding the Fourth Proportional to 586,932.20, 879,620.70 and 520,058.60

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Solution

The fourth proportional to 586,932.20, 879,620.70 and 520,058.60 is: 779,398.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,932.20 : 879,620.70 = 520,058.60 : x
  2. Step 2: Convert to fraction form
    586,932.20/879,620.70 = 520,058.60/x
  3. Step 3: Cross multiply
    586,932.20x = 879,620.70 × 520,058.60
  4. Step 4: Simplify right side
    586,932.20x = 457,454,309,773.02
  5. Step 5: Solve for x
    x = 457,454,309,773.02/586,932.20
  6. Step 6: Final answer
    x = 779,398.90

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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.