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Finding the Fourth Proportional to 658,850.30, 988,275.45 and 160,214.30

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Solution

The fourth proportional to 658,850.30, 988,275.45 and 160,214.30 is: 240,321.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,850.30 : 988,275.45 = 160,214.30 : x
  2. Step 2: Convert to fraction form
    658,850.30/988,275.45 = 160,214.30/x
  3. Step 3: Cross multiply
    658,850.30x = 988,275.45 × 160,214.30
  4. Step 4: Simplify right side
    658,850.30x = 158,335,859,428.94
  5. Step 5: Solve for x
    x = 158,335,859,428.94/658,850.30
  6. Step 6: Final answer
    x = 240,321.45

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Half scale
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Double scale
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Similar ratio
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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.