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Finding the Fourth Proportional to 624,090.80, 936,136.20 and 529,612.40

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Solution

The fourth proportional to 624,090.80, 936,136.20 and 529,612.40 is: 794,418.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,090.80 : 936,136.20 = 529,612.40 : x
  2. Step 2: Convert to fraction form
    624,090.80/936,136.20 = 529,612.40/x
  3. Step 3: Cross multiply
    624,090.80x = 936,136.20 × 529,612.40
  4. Step 4: Simplify right side
    624,090.80x = 495,789,339,608.88
  5. Step 5: Solve for x
    x = 495,789,339,608.88/624,090.80
  6. Step 6: Final answer
    x = 794,418.60

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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.