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Finding the Fourth Proportional to 482,679.40, 724,019.10 and 370,923.70

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Solution

The fourth proportional to 482,679.40, 724,019.10 and 370,923.70 is: 556,385.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,679.40 : 724,019.10 = 370,923.70 : x
  2. Step 2: Convert to fraction form
    482,679.40/724,019.10 = 370,923.70/x
  3. Step 3: Cross multiply
    482,679.40x = 724,019.10 × 370,923.70
  4. Step 4: Simplify right side
    482,679.40x = 268,555,843,442.67
  5. Step 5: Solve for x
    x = 268,555,843,442.67/482,679.40
  6. Step 6: Final answer
    x = 556,385.55

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Similar ratio
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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.