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Finding the Fourth Proportional to 608,867.70, 913,301.55 and 276,443.70

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Solution

The fourth proportional to 608,867.70, 913,301.55 and 276,443.70 is: 414,665.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,867.70 : 913,301.55 = 276,443.70 : x
  2. Step 2: Convert to fraction form
    608,867.70/913,301.55 = 276,443.70/x
  3. Step 3: Cross multiply
    608,867.70x = 913,301.55 × 276,443.70
  4. Step 4: Simplify right side
    608,867.70x = 252,476,459,697.74
  5. Step 5: Solve for x
    x = 252,476,459,697.74/608,867.70
  6. Step 6: Final answer
    x = 414,665.55

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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.