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Finding the Fourth Proportional to 1,932,899.52, 2,899,123.92 and 513,065.88

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Solution

The fourth proportional to 1,932,899.52, 2,899,123.92 and 513,065.88 is: 769,539.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,932,899.52 : 2,899,123.92 = 513,065.88 : x
  2. Step 2: Convert to fraction form
    1,932,899.52/2,899,123.92 = 513,065.88/x
  3. Step 3: Cross multiply
    1,932,899.52x = 2,899,123.92 × 513,065.88
  4. Step 4: Simplify right side
    1,932,899.52x = 1,487,441,565,243.85
  5. Step 5: Solve for x
    x = 1,487,441,565,243.85/1,932,899.52
  6. Step 6: Final answer
    x = 769,539.00

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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.