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Finding the Fourth Proportional to 393,368.87, 591,177.80 and 366,713.89

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Solution

The fourth proportional to 393,368.87, 591,177.80 and 366,713.89 is: 551,119.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,368.87 : 591,177.80 = 366,713.89 : x
  2. Step 2: Convert to fraction form
    393,368.87/591,177.80 = 366,713.89/x
  3. Step 3: Cross multiply
    393,368.87x = 591,177.80 × 366,713.89
  4. Step 4: Simplify right side
    393,368.87x = 216,793,110,158.48
  5. Step 5: Solve for x
    x = 216,793,110,158.48/393,368.87
  6. Step 6: Final answer
    x = 551,119.13

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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.