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Finding the Fourth Proportional to 391,149.04, 586,628.72 and 106,840.92

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Solution

The fourth proportional to 391,149.04, 586,628.72 and 106,840.92 is: 160,235.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,149.04 : 586,628.72 = 106,840.92 : x
  2. Step 2: Convert to fraction form
    391,149.04/586,628.72 = 106,840.92/x
  3. Step 3: Cross multiply
    391,149.04x = 586,628.72 × 106,840.92
  4. Step 4: Simplify right side
    391,149.04x = 62,675,952,143.22
  5. Step 5: Solve for x
    x = 62,675,952,143.22/391,149.04
  6. Step 6: Final answer
    x = 160,235.47

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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.