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Finding the Fourth Proportional to 435,938.40, 653,421.60 and 169,610.40

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Solution

The fourth proportional to 435,938.40, 653,421.60 and 169,610.40 is: 254,226.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,938.40 : 653,421.60 = 169,610.40 : x
  2. Step 2: Convert to fraction form
    435,938.40/653,421.60 = 169,610.40/x
  3. Step 3: Cross multiply
    435,938.40x = 653,421.60 × 169,610.40
  4. Step 4: Simplify right side
    435,938.40x = 110,827,098,944.64
  5. Step 5: Solve for x
    x = 110,827,098,944.64/435,938.40
  6. Step 6: Final answer
    x = 254,226.51

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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.