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Finding the Fourth Proportional to 590,966.40, 886,449.60 and 253,949.70

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Solution

The fourth proportional to 590,966.40, 886,449.60 and 253,949.70 is: 380,924.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,966.40 : 886,449.60 = 253,949.70 : x
  2. Step 2: Convert to fraction form
    590,966.40/886,449.60 = 253,949.70/x
  3. Step 3: Cross multiply
    590,966.40x = 886,449.60 × 253,949.70
  4. Step 4: Simplify right side
    590,966.40x = 225,113,609,985.12
  5. Step 5: Solve for x
    x = 225,113,609,985.12/590,966.40
  6. Step 6: Final answer
    x = 380,924.55

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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.