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Finding the Fourth Proportional to 318,609.73, 439,677.96 and 175,366.69

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Solution

The fourth proportional to 318,609.73, 439,677.96 and 175,366.69 is: 242,004.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,609.73 : 439,677.96 = 175,366.69 : x
  2. Step 2: Convert to fraction form
    318,609.73/439,677.96 = 175,366.69/x
  3. Step 3: Cross multiply
    318,609.73x = 439,677.96 × 175,366.69
  4. Step 4: Simplify right side
    318,609.73x = 77,104,868,511.15
  5. Step 5: Solve for x
    x = 77,104,868,511.15/318,609.73
  6. Step 6: Final answer
    x = 242,004.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.