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Finding the Fourth Proportional to 439,124.85, 605,984.41 and 248,134.14

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Solution

The fourth proportional to 439,124.85, 605,984.41 and 248,134.14 is: 342,420.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,124.85 : 605,984.41 = 248,134.14 : x
  2. Step 2: Convert to fraction form
    439,124.85/605,984.41 = 248,134.14/x
  3. Step 3: Cross multiply
    439,124.85x = 605,984.41 × 248,134.14
  4. Step 4: Simplify right side
    439,124.85x = 150,365,420,428.76
  5. Step 5: Solve for x
    x = 150,365,420,428.76/439,124.85
  6. Step 6: Final answer
    x = 342,420.66

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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.