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Finding the Fourth Proportional to 624,126.80, 936,190.20 and 529,648.40

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Solution

The fourth proportional to 624,126.80, 936,190.20 and 529,648.40 is: 794,472.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,126.80 : 936,190.20 = 529,648.40 : x
  2. Step 2: Convert to fraction form
    624,126.80/936,190.20 = 529,648.40/x
  3. Step 3: Cross multiply
    624,126.80x = 936,190.20 × 529,648.40
  4. Step 4: Simplify right side
    624,126.80x = 495,851,641,525.68
  5. Step 5: Solve for x
    x = 495,851,641,525.68/624,126.80
  6. Step 6: Final answer
    x = 794,472.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.