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Finding the Fourth Proportional to 391,055.64, 585,677.34 and 333,504.60

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Solution

The fourth proportional to 391,055.64, 585,677.34 and 333,504.60 is: 499,484.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,055.64 : 585,677.34 = 333,504.60 : x
  2. Step 2: Convert to fraction form
    391,055.64/585,677.34 = 333,504.60/x
  3. Step 3: Cross multiply
    391,055.64x = 585,677.34 × 333,504.60
  4. Step 4: Simplify right side
    391,055.64x = 195,326,087,005.76
  5. Step 5: Solve for x
    x = 195,326,087,005.76/391,055.64
  6. Step 6: Final answer
    x = 499,484.13

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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.