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Finding the Fourth Proportional to 633,876.32, 874,817.52 and 404,439.84

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Solution

The fourth proportional to 633,876.32, 874,817.52 and 404,439.84 is: 558,170.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,876.32 : 874,817.52 = 404,439.84 : x
  2. Step 2: Convert to fraction form
    633,876.32/874,817.52 = 404,439.84/x
  3. Step 3: Cross multiply
    633,876.32x = 874,817.52 × 404,439.84
  4. Step 4: Simplify right side
    633,876.32x = 353,811,057,818.00
  5. Step 5: Solve for x
    x = 353,811,057,818.00/633,876.32
  6. Step 6: Final answer
    x = 558,170.49

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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.