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Finding the Fourth Proportional to 486,695.20, 730,042.80 and 468,032.80

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Solution

The fourth proportional to 486,695.20, 730,042.80 and 468,032.80 is: 702,049.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,695.20 : 730,042.80 = 468,032.80 : x
  2. Step 2: Convert to fraction form
    486,695.20/730,042.80 = 468,032.80/x
  3. Step 3: Cross multiply
    486,695.20x = 730,042.80 × 468,032.80
  4. Step 4: Simplify right side
    486,695.20x = 341,683,975,803.84
  5. Step 5: Solve for x
    x = 341,683,975,803.84/486,695.20
  6. Step 6: Final answer
    x = 702,049.20

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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.