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Finding the Fourth Proportional to 372,552.57, 514,108.28 and 211,398

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Solution

The fourth proportional to 372,552.57, 514,108.28 and 211,398 is: 291,721.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,552.57 : 514,108.28 = 211,398 : x
  2. Step 2: Convert to fraction form
    372,552.57/514,108.28 = 211,398/x
  3. Step 3: Cross multiply
    372,552.57x = 514,108.28 × 211,398
  4. Step 4: Simplify right side
    372,552.57x = 108,681,461,118.45
  5. Step 5: Solve for x
    x = 108,681,461,118.45/372,552.57
  6. Step 6: Final answer
    x = 291,721.14

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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.