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Finding the Fourth Proportional to 693,124.34, 956,449.17 and 387,173.97

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Solution

The fourth proportional to 693,124.34, 956,449.17 and 387,173.97 is: 534,265.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,124.34 : 956,449.17 = 387,173.97 : x
  2. Step 2: Convert to fraction form
    693,124.34/956,449.17 = 387,173.97/x
  3. Step 3: Cross multiply
    693,124.34x = 956,449.17 × 387,173.97
  4. Step 4: Simplify right side
    693,124.34x = 370,312,222,252.11
  5. Step 5: Solve for x
    x = 370,312,222,252.11/693,124.34
  6. Step 6: Final answer
    x = 534,265.22

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1.5x scale

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.