Home / 541,139.20-747,069.76-405,123.84

Finding the Fourth Proportional to 541,139.20, 747,069.76 and 405,123.84

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Solution

The fourth proportional to 541,139.20, 747,069.76 and 405,123.84 is: 559,293.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,139.20 : 747,069.76 = 405,123.84 : x
  2. Step 2: Convert to fraction form
    541,139.20/747,069.76 = 405,123.84/x
  3. Step 3: Cross multiply
    541,139.20x = 747,069.76 × 405,123.84
  4. Step 4: Simplify right side
    541,139.20x = 302,655,769,919.08
  5. Step 5: Solve for x
    x = 302,655,769,919.08/541,139.20
  6. Step 6: Final answer
    x = 559,293.75

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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.