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Finding the Fourth Proportional to 285,497.88, 393,999.99 and 158,173.47

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Solution

The fourth proportional to 285,497.88, 393,999.99 and 158,173.47 is: 218,286.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,497.88 : 393,999.99 = 158,173.47 : x
  2. Step 2: Convert to fraction form
    285,497.88/393,999.99 = 158,173.47/x
  3. Step 3: Cross multiply
    285,497.88x = 393,999.99 × 158,173.47
  4. Step 4: Simplify right side
    285,497.88x = 62,320,344,807.40
  5. Step 5: Solve for x
    x = 62,320,344,807.40/285,497.88
  6. Step 6: Final answer
    x = 218,286.55

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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.