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Finding the Fourth Proportional to 590,948.40, 886,422.60 and 253,931.70

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Solution

The fourth proportional to 590,948.40, 886,422.60 and 253,931.70 is: 380,897.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,948.40 : 886,422.60 = 253,931.70 : x
  2. Step 2: Convert to fraction form
    590,948.40/886,422.60 = 253,931.70/x
  3. Step 3: Cross multiply
    590,948.40x = 886,422.60 × 253,931.70
  4. Step 4: Simplify right side
    590,948.40x = 225,090,797,736.42
  5. Step 5: Solve for x
    x = 225,090,797,736.42/590,948.40
  6. Step 6: Final answer
    x = 380,897.55

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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.