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Finding the Fourth Proportional to 520,064.90, 729,073.90 and 520,064.90

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Solution

The fourth proportional to 520,064.90, 729,073.90 and 520,064.90 is: 729,073.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,064.90 : 729,073.90 = 520,064.90 : x
  2. Step 2: Convert to fraction form
    520,064.90/729,073.90 = 520,064.90/x
  3. Step 3: Cross multiply
    520,064.90x = 729,073.90 × 520,064.90
  4. Step 4: Simplify right side
    520,064.90x = 379,165,744,896.11
  5. Step 5: Solve for x
    x = 379,165,744,896.11/520,064.90
  6. Step 6: Final answer
    x = 729,073.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.