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Finding the Fourth Proportional to 391,053.64, 585,674.32 and 333,502.60

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Solution

The fourth proportional to 391,053.64, 585,674.32 and 333,502.60 is: 499,481.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,053.64 : 585,674.32 = 333,502.60 : x
  2. Step 2: Convert to fraction form
    391,053.64/585,674.32 = 333,502.60/x
  3. Step 3: Cross multiply
    391,053.64x = 585,674.32 × 333,502.60
  4. Step 4: Simplify right side
    391,053.64x = 195,323,908,473.23
  5. Step 5: Solve for x
    x = 195,323,908,473.23/391,053.64
  6. Step 6: Final answer
    x = 499,481.12

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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.