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Finding the Fourth Proportional to 713,843.46, 985,096.17 and 391,552.38

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Solution

The fourth proportional to 713,843.46, 985,096.17 and 391,552.38 is: 540,338.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,843.46 : 985,096.17 = 391,552.38 : x
  2. Step 2: Convert to fraction form
    713,843.46/985,096.17 = 391,552.38/x
  3. Step 3: Cross multiply
    713,843.46x = 985,096.17 × 391,552.38
  4. Step 4: Simplify right side
    713,843.46x = 385,716,749,892.39
  5. Step 5: Solve for x
    x = 385,716,749,892.39/713,843.46
  6. Step 6: Final answer
    x = 540,338.00

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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.