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Finding the Fourth Proportional to 443,608.04, 612,191.76 and 247,379.12

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Solution

The fourth proportional to 443,608.04, 612,191.76 and 247,379.12 is: 341,390.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,608.04 : 612,191.76 = 247,379.12 : x
  2. Step 2: Convert to fraction form
    443,608.04/612,191.76 = 247,379.12/x
  3. Step 3: Cross multiply
    443,608.04x = 612,191.76 × 247,379.12
  4. Step 4: Simplify right side
    443,608.04x = 151,443,458,860.05
  5. Step 5: Solve for x
    x = 151,443,458,860.05/443,608.04
  6. Step 6: Final answer
    x = 341,390.25

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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.