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Finding the Fourth Proportional to 473,338.80, 709,662.60 and 192,711.60

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Solution

The fourth proportional to 473,338.80, 709,662.60 and 192,711.60 is: 288,926.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,338.80 : 709,662.60 = 192,711.60 : x
  2. Step 2: Convert to fraction form
    473,338.80/709,662.60 = 192,711.60/x
  3. Step 3: Cross multiply
    473,338.80x = 709,662.60 × 192,711.60
  4. Step 4: Simplify right side
    473,338.80x = 136,760,215,106.16
  5. Step 5: Solve for x
    x = 136,760,215,106.16/473,338.80
  6. Step 6: Final answer
    x = 288,926.70

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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.