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Finding the Fourth Proportional to 486,722.20, 730,083.30 and 468,059.80

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Solution

The fourth proportional to 486,722.20, 730,083.30 and 468,059.80 is: 702,089.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,722.20 : 730,083.30 = 468,059.80 : x
  2. Step 2: Convert to fraction form
    486,722.20/730,083.30 = 468,059.80/x
  3. Step 3: Cross multiply
    486,722.20x = 730,083.30 × 468,059.80
  4. Step 4: Simplify right side
    486,722.20x = 341,722,643,381.34
  5. Step 5: Solve for x
    x = 341,722,643,381.34/486,722.20
  6. Step 6: Final answer
    x = 702,089.70

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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.