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Finding the Fourth Proportional to 664,512.10, 997,752.30 and 514,921.30

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Solution

The fourth proportional to 664,512.10, 997,752.30 and 514,921.30 is: 773,144.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,512.10 : 997,752.30 = 514,921.30 : x
  2. Step 2: Convert to fraction form
    664,512.10/997,752.30 = 514,921.30/x
  3. Step 3: Cross multiply
    664,512.10x = 997,752.30 × 514,921.30
  4. Step 4: Simplify right side
    664,512.10x = 513,763,911,393.99
  5. Step 5: Solve for x
    x = 513,763,911,393.99/664,512.10
  6. Step 6: Final answer
    x = 773,144.55

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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.