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Finding the Fourth Proportional to 443,713.88, 665,870.32 and 173,808.55

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Solution

The fourth proportional to 443,713.88, 665,870.32 and 173,808.55 is: 260,830.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,713.88 : 665,870.32 = 173,808.55 : x
  2. Step 2: Convert to fraction form
    443,713.88/665,870.32 = 173,808.55/x
  3. Step 3: Cross multiply
    443,713.88x = 665,870.32 × 173,808.55
  4. Step 4: Simplify right side
    443,713.88x = 115,733,952,708.04
  5. Step 5: Solve for x
    x = 115,733,952,708.04/443,713.88
  6. Step 6: Final answer
    x = 260,830.14

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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.