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Finding the Fourth Proportional to 583,658.40, 876,143.70 and 451,126.20

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Solution

The fourth proportional to 583,658.40, 876,143.70 and 451,126.20 is: 677,196.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,658.40 : 876,143.70 = 451,126.20 : x
  2. Step 2: Convert to fraction form
    583,658.40/876,143.70 = 451,126.20/x
  3. Step 3: Cross multiply
    583,658.40x = 876,143.70 × 451,126.20
  4. Step 4: Simplify right side
    583,658.40x = 395,251,378,034.94
  5. Step 5: Solve for x
    x = 395,251,378,034.94/583,658.40
  6. Step 6: Final answer
    x = 677,196.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.