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Finding the Fourth Proportional to 625,575.72, 863,791.38 and 577,811.64

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Solution

The fourth proportional to 625,575.72, 863,791.38 and 577,811.64 is: 797,839.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,575.72 : 863,791.38 = 577,811.64 : x
  2. Step 2: Convert to fraction form
    625,575.72/863,791.38 = 577,811.64/x
  3. Step 3: Cross multiply
    625,575.72x = 863,791.38 × 577,811.64
  4. Step 4: Simplify right side
    625,575.72x = 499,108,713,895.66
  5. Step 5: Solve for x
    x = 499,108,713,895.66/625,575.72
  6. Step 6: Final answer
    x = 797,839.01

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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.