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Finding the Fourth Proportional to 633,385.59, 874,055.38 and 361,448.61

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Solution

The fourth proportional to 633,385.59, 874,055.38 and 361,448.61 is: 498,789.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,385.59 : 874,055.38 = 361,448.61 : x
  2. Step 2: Convert to fraction form
    633,385.59/874,055.38 = 361,448.61/x
  3. Step 3: Cross multiply
    633,385.59x = 874,055.38 × 361,448.61
  4. Step 4: Simplify right side
    633,385.59x = 315,926,102,164.02
  5. Step 5: Solve for x
    x = 315,926,102,164.02/633,385.59
  6. Step 6: Final answer
    x = 498,789.53

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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.