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Finding the Fourth Proportional to 263,609.60, 394,876.80 and 163,462.40

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Solution

The fourth proportional to 263,609.60, 394,876.80 and 163,462.40 is: 244,860.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,609.60 : 394,876.80 = 163,462.40 : x
  2. Step 2: Convert to fraction form
    263,609.60/394,876.80 = 163,462.40/x
  3. Step 3: Cross multiply
    263,609.60x = 394,876.80 × 163,462.40
  4. Step 4: Simplify right side
    263,609.60x = 64,547,509,432.32
  5. Step 5: Solve for x
    x = 64,547,509,432.32/263,609.60
  6. Step 6: Final answer
    x = 244,860.24

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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.