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Finding the Fourth Proportional to 709,849.60, 980,034.60 and 451,872.16

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Solution

The fourth proportional to 709,849.60, 980,034.60 and 451,872.16 is: 623,865.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,849.60 : 980,034.60 = 451,872.16 : x
  2. Step 2: Convert to fraction form
    709,849.60/980,034.60 = 451,872.16/x
  3. Step 3: Cross multiply
    709,849.60x = 980,034.60 × 451,872.16
  4. Step 4: Simplify right side
    709,849.60x = 442,850,351,576.74
  5. Step 5: Solve for x
    x = 442,850,351,576.74/709,849.60
  6. Step 6: Final answer
    x = 623,865.04

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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.