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Finding the Fourth Proportional to 573,127.60, 860,080.20 and 372,960.40

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Solution

The fourth proportional to 573,127.60, 860,080.20 and 372,960.40 is: 559,693.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,127.60 : 860,080.20 = 372,960.40 : x
  2. Step 2: Convert to fraction form
    573,127.60/860,080.20 = 372,960.40/x
  3. Step 3: Cross multiply
    573,127.60x = 860,080.20 × 372,960.40
  4. Step 4: Simplify right side
    573,127.60x = 320,775,855,424.08
  5. Step 5: Solve for x
    x = 320,775,855,424.08/573,127.60
  6. Step 6: Final answer
    x = 559,693.61

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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.