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Finding the Fourth Proportional to 650,855.70, 976,283.55 and 177,540.30

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Solution

The fourth proportional to 650,855.70, 976,283.55 and 177,540.30 is: 266,310.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,855.70 : 976,283.55 = 177,540.30 : x
  2. Step 2: Convert to fraction form
    650,855.70/976,283.55 = 177,540.30/x
  3. Step 3: Cross multiply
    650,855.70x = 976,283.55 × 177,540.30
  4. Step 4: Simplify right side
    650,855.70x = 173,329,674,352.07
  5. Step 5: Solve for x
    x = 173,329,674,352.07/650,855.70
  6. Step 6: Final answer
    x = 266,310.45

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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.