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Finding the Fourth Proportional to 451,561.38, 623,161.74 and 247,630.92

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Solution

The fourth proportional to 451,561.38, 623,161.74 and 247,630.92 is: 341,734.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,561.38 : 623,161.74 = 247,630.92 : x
  2. Step 2: Convert to fraction form
    451,561.38/623,161.74 = 247,630.92/x
  3. Step 3: Cross multiply
    451,561.38x = 623,161.74 × 247,630.92
  4. Step 4: Simplify right side
    451,561.38x = 154,314,114,985.00
  5. Step 5: Solve for x
    x = 154,314,114,985.00/451,561.38
  6. Step 6: Final answer
    x = 341,734.53

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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.