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Finding the Fourth Proportional to 488,132.04, 673,542.03 and 306,715.50

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Solution

The fourth proportional to 488,132.04, 673,542.03 and 306,715.50 is: 423,217.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,132.04 : 673,542.03 = 306,715.50 : x
  2. Step 2: Convert to fraction form
    488,132.04/673,542.03 = 306,715.50/x
  3. Step 3: Cross multiply
    488,132.04x = 673,542.03 × 306,715.50
  4. Step 4: Simplify right side
    488,132.04x = 206,585,780,502.47
  5. Step 5: Solve for x
    x = 206,585,780,502.47/488,132.04
  6. Step 6: Final answer
    x = 423,217.01

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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.