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Finding the Fourth Proportional to 261,039.70, 391,559.55 and 182,307.70

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Solution

The fourth proportional to 261,039.70, 391,559.55 and 182,307.70 is: 273,461.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,039.70 : 391,559.55 = 182,307.70 : x
  2. Step 2: Convert to fraction form
    261,039.70/391,559.55 = 182,307.70/x
  3. Step 3: Cross multiply
    261,039.70x = 391,559.55 × 182,307.70
  4. Step 4: Simplify right side
    261,039.70x = 71,384,320,973.54
  5. Step 5: Solve for x
    x = 71,384,320,973.54/261,039.70
  6. Step 6: Final answer
    x = 273,461.55

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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.