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Finding the Fourth Proportional to 519,417.38, 779,170.48 and 182,428.70

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Solution

The fourth proportional to 519,417.38, 779,170.48 and 182,428.70 is: 273,658.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,417.38 : 779,170.48 = 182,428.70 : x
  2. Step 2: Convert to fraction form
    519,417.38/779,170.48 = 182,428.70/x
  3. Step 3: Cross multiply
    519,417.38x = 779,170.48 × 182,428.70
  4. Step 4: Simplify right side
    519,417.38x = 142,143,053,392.85
  5. Step 5: Solve for x
    x = 142,143,053,392.85/519,417.38
  6. Step 6: Final answer
    x = 273,658.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.