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Finding the Fourth Proportional to 473,080.89, 709,614.65 and 220,219.95

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Solution

The fourth proportional to 473,080.89, 709,614.65 and 220,219.95 is: 330,326.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,080.89 : 709,614.65 = 220,219.95 : x
  2. Step 2: Convert to fraction form
    473,080.89/709,614.65 = 220,219.95/x
  3. Step 3: Cross multiply
    473,080.89x = 709,614.65 × 220,219.95
  4. Step 4: Simplify right side
    473,080.89x = 156,271,301,641.17
  5. Step 5: Solve for x
    x = 156,271,301,641.17/473,080.89
  6. Step 6: Final answer
    x = 330,326.81

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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.