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Finding the Fourth Proportional to 435,131.16, 653,174.06 and 345,748.46

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Solution

The fourth proportional to 435,131.16, 653,174.06 and 345,748.46 is: 519,001.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,131.16 : 653,174.06 = 345,748.46 : x
  2. Step 2: Convert to fraction form
    435,131.16/653,174.06 = 345,748.46/x
  3. Step 3: Cross multiply
    435,131.16x = 653,174.06 × 345,748.46
  4. Step 4: Simplify right side
    435,131.16x = 225,833,925,356.95
  5. Step 5: Solve for x
    x = 225,833,925,356.95/435,131.16
  6. Step 6: Final answer
    x = 519,001.96

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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.