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Finding the Fourth Proportional to 590,996.50, 886,494.75 and 147,764.50

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Solution

The fourth proportional to 590,996.50, 886,494.75 and 147,764.50 is: 221,646.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,996.50 : 886,494.75 = 147,764.50 : x
  2. Step 2: Convert to fraction form
    590,996.50/886,494.75 = 147,764.50/x
  3. Step 3: Cross multiply
    590,996.50x = 886,494.75 × 147,764.50
  4. Step 4: Simplify right side
    590,996.50x = 130,992,453,486.38
  5. Step 5: Solve for x
    x = 130,992,453,486.38/590,996.50
  6. Step 6: Final answer
    x = 221,646.75

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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.