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Finding the Fourth Proportional to 313,752.30, 432,961.59 and 177,787.88

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Solution

The fourth proportional to 313,752.30, 432,961.59 and 177,787.88 is: 245,337.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,752.30 : 432,961.59 = 177,787.88 : x
  2. Step 2: Convert to fraction form
    313,752.30/432,961.59 = 177,787.88/x
  3. Step 3: Cross multiply
    313,752.30x = 432,961.59 × 177,787.88
  4. Step 4: Simplify right side
    313,752.30x = 76,975,323,207.53
  5. Step 5: Solve for x
    x = 76,975,323,207.53/313,752.30
  6. Step 6: Final answer
    x = 245,337.88

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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.