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Finding the Fourth Proportional to 3,001.01, 4,501.49 and 920.97

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Solution

The fourth proportional to 3,001.01, 4,501.49 and 920.97 is: 1,381.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,001.01 : 4,501.49 = 920.97 : x
  2. Step 2: Convert to fraction form
    3,001.01/4,501.49 = 920.97/x
  3. Step 3: Cross multiply
    3,001.01x = 4,501.49 × 920.97
  4. Step 4: Simplify right side
    3,001.01x = 4,145,732.64
  5. Step 5: Solve for x
    x = 4,145,732.64/3,001.01
  6. Step 6: Final answer
    x = 1,381.45

Related Problems

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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.