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Finding the Fourth Proportional to 573,132.20, 859,698.30 and 307,411.70

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Solution

The fourth proportional to 573,132.20, 859,698.30 and 307,411.70 is: 461,117.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,132.20 : 859,698.30 = 307,411.70 : x
  2. Step 2: Convert to fraction form
    573,132.20/859,698.30 = 307,411.70/x
  3. Step 3: Cross multiply
    573,132.20x = 859,698.30 × 307,411.70
  4. Step 4: Simplify right side
    573,132.20x = 264,281,315,890.11
  5. Step 5: Solve for x
    x = 264,281,315,890.11/573,132.20
  6. Step 6: Final answer
    x = 461,117.55

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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.