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Finding the Fourth Proportional to 633,624.50, 874,186.53 and 361,496.90

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Solution

The fourth proportional to 633,624.50, 874,186.53 and 361,496.90 is: 498,742.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,624.50 : 874,186.53 = 361,496.90 : x
  2. Step 2: Convert to fraction form
    633,624.50/874,186.53 = 361,496.90/x
  3. Step 3: Cross multiply
    633,624.50x = 874,186.53 × 361,496.90
  4. Step 4: Simplify right side
    633,624.50x = 316,015,720,616.76
  5. Step 5: Solve for x
    x = 316,015,720,616.76/633,624.50
  6. Step 6: Final answer
    x = 498,742.90

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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.