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Finding the Fourth Proportional to 435,716.70, 653,445.45 and 169,323.90

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Solution

The fourth proportional to 435,716.70, 653,445.45 and 169,323.90 is: 253,935.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,716.70 : 653,445.45 = 169,323.90 : x
  2. Step 2: Convert to fraction form
    435,716.70/653,445.45 = 169,323.90/x
  3. Step 3: Cross multiply
    435,716.70x = 653,445.45 × 169,323.90
  4. Step 4: Simplify right side
    435,716.70x = 110,643,932,031.26
  5. Step 5: Solve for x
    x = 110,643,932,031.26/435,716.70
  6. Step 6: Final answer
    x = 253,935.49

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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.