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Finding the Fourth Proportional to 633,505.20, 874,251.28 and 361,567.64

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Solution

The fourth proportional to 633,505.20, 874,251.28 and 361,567.64 is: 498,971.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,505.20 : 874,251.28 = 361,567.64 : x
  2. Step 2: Convert to fraction form
    633,505.20/874,251.28 = 361,567.64/x
  3. Step 3: Cross multiply
    633,505.20x = 874,251.28 × 361,567.64
  4. Step 4: Simplify right side
    633,505.20x = 316,100,972,076.58
  5. Step 5: Solve for x
    x = 316,100,972,076.58/633,505.20
  6. Step 6: Final answer
    x = 498,971.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.