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Finding the Fourth Proportional to 313,320.48, 432,388.98 and 177,354.60

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Solution

The fourth proportional to 313,320.48, 432,388.98 and 177,354.60 is: 244,753.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,320.48 : 432,388.98 = 177,354.60 : x
  2. Step 2: Convert to fraction form
    313,320.48/432,388.98 = 177,354.60/x
  3. Step 3: Cross multiply
    313,320.48x = 432,388.98 × 177,354.60
  4. Step 4: Simplify right side
    313,320.48x = 76,686,174,592.31
  5. Step 5: Solve for x
    x = 76,686,174,592.31/313,320.48
  6. Step 6: Final answer
    x = 244,753.15

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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.