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Finding the Fourth Proportional to 473,443.80, 709,820.10 and 192,816.60

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Solution

The fourth proportional to 473,443.80, 709,820.10 and 192,816.60 is: 289,084.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,443.80 : 709,820.10 = 192,816.60 : x
  2. Step 2: Convert to fraction form
    473,443.80/709,820.10 = 192,816.60/x
  3. Step 3: Cross multiply
    473,443.80x = 709,820.10 × 192,816.60
  4. Step 4: Simplify right side
    473,443.80x = 136,865,098,293.66
  5. Step 5: Solve for x
    x = 136,865,098,293.66/473,443.80
  6. Step 6: Final answer
    x = 289,084.15

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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.