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Finding the Fourth Proportional to 372,577.61, 514,127.79 and 211,432.66

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Solution

The fourth proportional to 372,577.61, 514,127.79 and 211,432.66 is: 291,760.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,577.61 : 514,127.79 = 211,432.66 : x
  2. Step 2: Convert to fraction form
    372,577.61/514,127.79 = 211,432.66/x
  3. Step 3: Cross multiply
    372,577.61x = 514,127.79 × 211,432.66
  4. Step 4: Simplify right side
    372,577.61x = 108,703,406,219.62
  5. Step 5: Solve for x
    x = 108,703,406,219.62/372,577.61
  6. Step 6: Final answer
    x = 291,760.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.