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Finding the Fourth Proportional to 633,656.54, 874,412.60 and 361,713.62

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Solution

The fourth proportional to 633,656.54, 874,412.60 and 361,713.62 is: 499,145.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,656.54 : 874,412.60 = 361,713.62 : x
  2. Step 2: Convert to fraction form
    633,656.54/874,412.60 = 361,713.62/x
  3. Step 3: Cross multiply
    633,656.54x = 874,412.60 × 361,713.62
  4. Step 4: Simplify right side
    633,656.54x = 316,286,946,919.61
  5. Step 5: Solve for x
    x = 316,286,946,919.61/633,656.54
  6. Step 6: Final answer
    x = 499,145.72

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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.