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Finding the Fourth Proportional to 443,606.04, 612,189 and 247,377.12

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Solution

The fourth proportional to 443,606.04, 612,189 and 247,377.12 is: 341,387.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,606.04 : 612,189 = 247,377.12 : x
  2. Step 2: Convert to fraction form
    443,606.04/612,189 = 247,377.12/x
  3. Step 3: Cross multiply
    443,606.04x = 612,189 × 247,377.12
  4. Step 4: Simplify right side
    443,606.04x = 151,441,551,715.68
  5. Step 5: Solve for x
    x = 151,441,551,715.68/443,606.04
  6. Step 6: Final answer
    x = 341,387.49

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1.5x scale

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.