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Finding the Fourth Proportional to 313,657.73, 432,833.55 and 177,688.90

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Solution

The fourth proportional to 313,657.73, 432,833.55 and 177,688.90 is: 245,202.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,657.73 : 432,833.55 = 177,688.90 : x
  2. Step 2: Convert to fraction form
    313,657.73/432,833.55 = 177,688.90/x
  3. Step 3: Cross multiply
    313,657.73x = 432,833.55 × 177,688.90
  4. Step 4: Simplify right side
    313,657.73x = 76,909,717,382.60
  5. Step 5: Solve for x
    x = 76,909,717,382.60/313,657.73
  6. Step 6: Final answer
    x = 245,202.68

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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.