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Finding the Fourth Proportional to 260,246.72, 390,370.24 and 73,258.24

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Solution

The fourth proportional to 260,246.72, 390,370.24 and 73,258.24 is: 109,887.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,246.72 : 390,370.24 = 73,258.24 : x
  2. Step 2: Convert to fraction form
    260,246.72/390,370.24 = 73,258.24/x
  3. Step 3: Cross multiply
    260,246.72x = 390,370.24 × 73,258.24
  4. Step 4: Simplify right side
    260,246.72x = 28,597,836,730.78
  5. Step 5: Solve for x
    x = 28,597,836,730.78/260,246.72
  6. Step 6: Final answer
    x = 109,887.41

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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.