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Finding the Fourth Proportional to 308,331.55, 462,129.18 and 158,643.55

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Solution

The fourth proportional to 308,331.55, 462,129.18 and 158,643.55 is: 237,775.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,331.55 : 462,129.18 = 158,643.55 : x
  2. Step 2: Convert to fraction form
    308,331.55/462,129.18 = 158,643.55/x
  3. Step 3: Cross multiply
    308,331.55x = 462,129.18 × 158,643.55
  4. Step 4: Simplify right side
    308,331.55x = 73,313,813,673.79
  5. Step 5: Solve for x
    x = 73,313,813,673.79/308,331.55
  6. Step 6: Final answer
    x = 237,775.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.