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Finding the Fourth Proportional to 584,177.76, 805,434.84 and 487,520.64

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Solution

The fourth proportional to 584,177.76, 805,434.84 and 487,520.64 is: 672,168.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,177.76 : 805,434.84 = 487,520.64 : x
  2. Step 2: Convert to fraction form
    584,177.76/805,434.84 = 487,520.64/x
  3. Step 3: Cross multiply
    584,177.76x = 805,434.84 × 487,520.64
  4. Step 4: Simplify right side
    584,177.76x = 392,666,108,675.10
  5. Step 5: Solve for x
    x = 392,666,108,675.10/584,177.76
  6. Step 6: Final answer
    x = 672,168.88

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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.