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Finding the Fourth Proportional to 551,237.70, 826,856.55 and 481,253.70

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Solution

The fourth proportional to 551,237.70, 826,856.55 and 481,253.70 is: 721,880.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,237.70 : 826,856.55 = 481,253.70 : x
  2. Step 2: Convert to fraction form
    551,237.70/826,856.55 = 481,253.70/x
  3. Step 3: Cross multiply
    551,237.70x = 826,856.55 × 481,253.70
  4. Step 4: Simplify right side
    551,237.70x = 397,927,774,056.74
  5. Step 5: Solve for x
    x = 397,927,774,056.74/551,237.70
  6. Step 6: Final answer
    x = 721,880.55

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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.