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Finding the Fourth Proportional to 435,061.70, 652,592.55 and 405,537.20

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Solution

The fourth proportional to 435,061.70, 652,592.55 and 405,537.20 is: 608,305.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,061.70 : 652,592.55 = 405,537.20 : x
  2. Step 2: Convert to fraction form
    435,061.70/652,592.55 = 405,537.20/x
  3. Step 3: Cross multiply
    435,061.70x = 652,592.55 × 405,537.20
  4. Step 4: Simplify right side
    435,061.70x = 264,650,555,467.86
  5. Step 5: Solve for x
    x = 264,650,555,467.86/435,061.70
  6. Step 6: Final answer
    x = 608,305.80

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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.