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Finding the Fourth Proportional to 372,710.48, 514,354.56 and 211,572.32

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Solution

The fourth proportional to 372,710.48, 514,354.56 and 211,572.32 is: 291,977.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,710.48 : 514,354.56 = 211,572.32 : x
  2. Step 2: Convert to fraction form
    372,710.48/514,354.56 = 211,572.32/x
  3. Step 3: Cross multiply
    372,710.48x = 514,354.56 × 211,572.32
  4. Step 4: Simplify right side
    372,710.48x = 108,823,187,561.78
  5. Step 5: Solve for x
    x = 108,823,187,561.78/372,710.48
  6. Step 6: Final answer
    x = 291,977.80

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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.