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Finding the Fourth Proportional to 518,046.44, 709,726.19 and 498,630.96

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Solution

The fourth proportional to 518,046.44, 709,726.19 and 498,630.96 is: 683,126.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,046.44 : 709,726.19 = 498,630.96 : x
  2. Step 2: Convert to fraction form
    518,046.44/709,726.19 = 498,630.96/x
  3. Step 3: Cross multiply
    518,046.44x = 709,726.19 × 498,630.96
  4. Step 4: Simplify right side
    518,046.44x = 353,891,448,963.69
  5. Step 5: Solve for x
    x = 353,891,448,963.69/518,046.44
  6. Step 6: Final answer
    x = 683,126.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.