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Finding the Fourth Proportional to 492,072.90, 738,109.35 and 159,648.90

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Solution

The fourth proportional to 492,072.90, 738,109.35 and 159,648.90 is: 239,473.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,072.90 : 738,109.35 = 159,648.90 : x
  2. Step 2: Convert to fraction form
    492,072.90/738,109.35 = 159,648.90/x
  3. Step 3: Cross multiply
    492,072.90x = 738,109.35 × 159,648.90
  4. Step 4: Simplify right side
    492,072.90x = 117,838,345,807.22
  5. Step 5: Solve for x
    x = 117,838,345,807.22/492,072.90
  6. Step 6: Final answer
    x = 239,473.35

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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.