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Finding the Fourth Proportional to 693,158.58, 956,528.64 and 387,233.64

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Solution

The fourth proportional to 693,158.58, 956,528.64 and 387,233.64 is: 534,365.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,158.58 : 956,528.64 = 387,233.64 : x
  2. Step 2: Convert to fraction form
    693,158.58/956,528.64 = 387,233.64/x
  3. Step 3: Cross multiply
    693,158.58x = 956,528.64 × 387,233.64
  4. Step 4: Simplify right side
    693,158.58x = 370,400,067,031.45
  5. Step 5: Solve for x
    x = 370,400,067,031.45/693,158.58
  6. Step 6: Final answer
    x = 534,365.55

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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.