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Finding the Fourth Proportional to 482,847.40, 724,271.10 and 479,348.20

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Solution

The fourth proportional to 482,847.40, 724,271.10 and 479,348.20 is: 719,022.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,847.40 : 724,271.10 = 479,348.20 : x
  2. Step 2: Convert to fraction form
    482,847.40/724,271.10 = 479,348.20/x
  3. Step 3: Cross multiply
    482,847.40x = 724,271.10 × 479,348.20
  4. Step 4: Simplify right side
    482,847.40x = 347,178,048,097.02
  5. Step 5: Solve for x
    x = 347,178,048,097.02/482,847.40
  6. Step 6: Final answer
    x = 719,022.30

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Double scale
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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.