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Finding the Fourth Proportional to 573,131.70, 859,697.55 and 307,411.20

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Solution

The fourth proportional to 573,131.70, 859,697.55 and 307,411.20 is: 461,116.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,131.70 : 859,697.55 = 307,411.20 : x
  2. Step 2: Convert to fraction form
    573,131.70/859,697.55 = 307,411.20/x
  3. Step 3: Cross multiply
    573,131.70x = 859,697.55 × 307,411.20
  4. Step 4: Simplify right side
    573,131.70x = 264,280,655,482.56
  5. Step 5: Solve for x
    x = 264,280,655,482.56/573,131.70
  6. Step 6: Final answer
    x = 461,116.80

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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.