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Finding the Fourth Proportional to 590,990.75, 886,486.15 and 147,758.75

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Solution

The fourth proportional to 590,990.75, 886,486.15 and 147,758.75 is: 221,638.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,990.75 : 886,486.15 = 147,758.75 : x
  2. Step 2: Convert to fraction form
    590,990.75/886,486.15 = 147,758.75/x
  3. Step 3: Cross multiply
    590,990.75x = 886,486.15 × 147,758.75
  4. Step 4: Simplify right side
    590,990.75x = 130,986,085,416.31
  5. Step 5: Solve for x
    x = 130,986,085,416.31/590,990.75
  6. Step 6: Final answer
    x = 221,638.13

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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.