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Finding the Fourth Proportional to 313,356.48, 432,431.52 and 179,220.48

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Solution

The fourth proportional to 313,356.48, 432,431.52 and 179,220.48 is: 247,324.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,356.48 : 432,431.52 = 179,220.48 : x
  2. Step 2: Convert to fraction form
    313,356.48/432,431.52 = 179,220.48/x
  3. Step 3: Cross multiply
    313,356.48x = 432,431.52 × 179,220.48
  4. Step 4: Simplify right side
    313,356.48x = 77,500,584,581.53
  5. Step 5: Solve for x
    x = 77,500,584,581.53/313,356.48
  6. Step 6: Final answer
    x = 247,324.02

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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.