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Finding the Fourth Proportional to 527,800.99, 791,705.81 and 345,585.43

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Solution

The fourth proportional to 527,800.99, 791,705.81 and 345,585.43 is: 518,380.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,800.99 : 791,705.81 = 345,585.43 : x
  2. Step 2: Convert to fraction form
    527,800.99/791,705.81 = 345,585.43/x
  3. Step 3: Cross multiply
    527,800.99x = 791,705.81 × 345,585.43
  4. Step 4: Simplify right side
    527,800.99x = 273,601,989,683.93
  5. Step 5: Solve for x
    x = 273,601,989,683.93/527,800.99
  6. Step 6: Final answer
    x = 518,380.97

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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.