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Finding the Fourth Proportional to 547,617.40, 756,229.64 and 517,797.65

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Solution

The fourth proportional to 547,617.40, 756,229.64 and 517,797.65 is: 715,050.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,617.40 : 756,229.64 = 517,797.65 : x
  2. Step 2: Convert to fraction form
    547,617.40/756,229.64 = 517,797.65/x
  3. Step 3: Cross multiply
    547,617.40x = 756,229.64 × 517,797.65
  4. Step 4: Simplify right side
    547,617.40x = 391,573,929,753.93
  5. Step 5: Solve for x
    x = 391,573,929,753.93/547,617.40
  6. Step 6: Final answer
    x = 715,050.20

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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.