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Finding the Fourth Proportional to 713,793.96, 985,348.62 and 499,773.24

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Solution

The fourth proportional to 713,793.96, 985,348.62 and 499,773.24 is: 689,906.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,793.96 : 985,348.62 = 499,773.24 : x
  2. Step 2: Convert to fraction form
    713,793.96/985,348.62 = 499,773.24/x
  3. Step 3: Cross multiply
    713,793.96x = 985,348.62 × 499,773.24
  4. Step 4: Simplify right side
    713,793.96x = 492,450,872,346.93
  5. Step 5: Solve for x
    x = 492,450,872,346.93/713,793.96
  6. Step 6: Final answer
    x = 689,906.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.