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Finding the Fourth Proportional to 589,387.70, 884,081.55 and 146,155.70

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Solution

The fourth proportional to 589,387.70, 884,081.55 and 146,155.70 is: 219,233.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,387.70 : 884,081.55 = 146,155.70 : x
  2. Step 2: Convert to fraction form
    589,387.70/884,081.55 = 146,155.70/x
  3. Step 3: Cross multiply
    589,387.70x = 884,081.55 × 146,155.70
  4. Step 4: Simplify right side
    589,387.70x = 129,213,557,797.34
  5. Step 5: Solve for x
    x = 129,213,557,797.34/589,387.70
  6. Step 6: Final answer
    x = 219,233.55

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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.