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Finding the Fourth Proportional to 658,655.02, 908,920.65 and 372,168.96

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Solution

The fourth proportional to 658,655.02, 908,920.65 and 372,168.96 is: 513,580.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,655.02 : 908,920.65 = 372,168.96 : x
  2. Step 2: Convert to fraction form
    658,655.02/908,920.65 = 372,168.96/x
  3. Step 3: Cross multiply
    658,655.02x = 908,920.65 × 372,168.96
  4. Step 4: Simplify right side
    658,655.02x = 338,272,053,033.02
  5. Step 5: Solve for x
    x = 338,272,053,033.02/658,655.02
  6. Step 6: Final answer
    x = 513,580.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.