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Finding the Fourth Proportional to 313,693.32, 432,801.18 and 177,705.48

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Solution

The fourth proportional to 313,693.32, 432,801.18 and 177,705.48 is: 245,179.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,693.32 : 432,801.18 = 177,705.48 : x
  2. Step 2: Convert to fraction form
    313,693.32/432,801.18 = 177,705.48/x
  3. Step 3: Cross multiply
    313,693.32x = 432,801.18 × 177,705.48
  4. Step 4: Simplify right side
    313,693.32x = 76,911,141,436.47
  5. Step 5: Solve for x
    x = 76,911,141,436.47/313,693.32
  6. Step 6: Final answer
    x = 245,179.40

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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.