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Finding the Fourth Proportional to 511,585.60, 767,378.40 and 156,600.40

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Solution

The fourth proportional to 511,585.60, 767,378.40 and 156,600.40 is: 234,900.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,585.60 : 767,378.40 = 156,600.40 : x
  2. Step 2: Convert to fraction form
    511,585.60/767,378.40 = 156,600.40/x
  3. Step 3: Cross multiply
    511,585.60x = 767,378.40 × 156,600.40
  4. Step 4: Simplify right side
    511,585.60x = 120,171,764,391.36
  5. Step 5: Solve for x
    x = 120,171,764,391.36/511,585.60
  6. Step 6: Final answer
    x = 234,900.60

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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.