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Finding the Fourth Proportional to 483,211.70, 724,817.55 and 404,414.90

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Solution

The fourth proportional to 483,211.70, 724,817.55 and 404,414.90 is: 606,622.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,211.70 : 724,817.55 = 404,414.90 : x
  2. Step 2: Convert to fraction form
    483,211.70/724,817.55 = 404,414.90/x
  3. Step 3: Cross multiply
    483,211.70x = 724,817.55 × 404,414.90
  4. Step 4: Simplify right side
    483,211.70x = 293,127,017,001.50
  5. Step 5: Solve for x
    x = 293,127,017,001.50/483,211.70
  6. Step 6: Final answer
    x = 606,622.35

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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.