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Finding the Fourth Proportional to 360,904.40, 541,356.60 and 259,427.60

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Solution

The fourth proportional to 360,904.40, 541,356.60 and 259,427.60 is: 389,141.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,904.40 : 541,356.60 = 259,427.60 : x
  2. Step 2: Convert to fraction form
    360,904.40/541,356.60 = 259,427.60/x
  3. Step 3: Cross multiply
    360,904.40x = 541,356.60 × 259,427.60
  4. Step 4: Simplify right side
    360,904.40x = 140,442,843,482.16
  5. Step 5: Solve for x
    x = 140,442,843,482.16/360,904.40
  6. Step 6: Final answer
    x = 389,141.40

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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.