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Finding the Fourth Proportional to 439,219.53, 606,129.48 and 245,648.16

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Solution

The fourth proportional to 439,219.53, 606,129.48 and 245,648.16 is: 338,998.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,219.53 : 606,129.48 = 245,648.16 : x
  2. Step 2: Convert to fraction form
    439,219.53/606,129.48 = 245,648.16/x
  3. Step 3: Cross multiply
    439,219.53x = 606,129.48 × 245,648.16
  4. Step 4: Simplify right side
    439,219.53x = 148,894,591,483.76
  5. Step 5: Solve for x
    x = 148,894,591,483.76/439,219.53
  6. Step 6: Final answer
    x = 338,998.11

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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.