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Finding the Fourth Proportional to 693,092.52, 956,460.20 and 387,199.56

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Solution

The fourth proportional to 693,092.52, 956,460.20 and 387,199.56 is: 534,331.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,092.52 : 956,460.20 = 387,199.56 : x
  2. Step 2: Convert to fraction form
    693,092.52/956,460.20 = 387,199.56/x
  3. Step 3: Cross multiply
    693,092.52x = 956,460.20 × 387,199.56
  4. Step 4: Simplify right side
    693,092.52x = 370,340,966,661.51
  5. Step 5: Solve for x
    x = 370,340,966,661.51/693,092.52
  6. Step 6: Final answer
    x = 534,331.21

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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.