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Finding the Fourth Proportional to 634,759.35, 951,508.31 and 318,250.23

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Solution

The fourth proportional to 634,759.35, 951,508.31 and 318,250.23 is: 477,059.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,759.35 : 951,508.31 = 318,250.23 : x
  2. Step 2: Convert to fraction form
    634,759.35/951,508.31 = 318,250.23/x
  3. Step 3: Cross multiply
    634,759.35x = 951,508.31 × 318,250.23
  4. Step 4: Simplify right side
    634,759.35x = 302,817,736,913.16
  5. Step 5: Solve for x
    x = 302,817,736,913.16/634,759.35
  6. Step 6: Final answer
    x = 477,059.12

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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.