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Finding the Fourth Proportional to 590,992.50, 886,488.75 and 147,760.50

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Solution

The fourth proportional to 590,992.50, 886,488.75 and 147,760.50 is: 221,640.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,992.50 : 886,488.75 = 147,760.50 : x
  2. Step 2: Convert to fraction form
    590,992.50/886,488.75 = 147,760.50/x
  3. Step 3: Cross multiply
    590,992.50x = 886,488.75 × 147,760.50
  4. Step 4: Simplify right side
    590,992.50x = 130,988,020,944.38
  5. Step 5: Solve for x
    x = 130,988,020,944.38/590,992.50
  6. Step 6: Final answer
    x = 221,640.75

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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.