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Finding the Fourth Proportional to 265,324.04, 398,005.65 and 75,800.45

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Solution

The fourth proportional to 265,324.04, 398,005.65 and 75,800.45 is: 113,706.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,324.04 : 398,005.65 = 75,800.45 : x
  2. Step 2: Convert to fraction form
    265,324.04/398,005.65 = 75,800.45/x
  3. Step 3: Cross multiply
    265,324.04x = 398,005.65 × 75,800.45
  4. Step 4: Simplify right side
    265,324.04x = 30,169,007,372.54
  5. Step 5: Solve for x
    x = 30,169,007,372.54/265,324.04
  6. Step 6: Final answer
    x = 113,706.27

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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.