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Finding the Fourth Proportional to 482,867.40, 724,301.10 and 437,766.60

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Solution

The fourth proportional to 482,867.40, 724,301.10 and 437,766.60 is: 656,649.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,867.40 : 724,301.10 = 437,766.60 : x
  2. Step 2: Convert to fraction form
    482,867.40/724,301.10 = 437,766.60/x
  3. Step 3: Cross multiply
    482,867.40x = 724,301.10 × 437,766.60
  4. Step 4: Simplify right side
    482,867.40x = 317,074,829,923.26
  5. Step 5: Solve for x
    x = 317,074,829,923.26/482,867.40
  6. Step 6: Final answer
    x = 656,649.90

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Half scale
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Double scale
Find fourth proportional to 482,868.40, 724,302.60 and 437,767.60
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.