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Finding the Fourth Proportional to 606,644.20, 909,966.30 and 512,165.80

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Solution

The fourth proportional to 606,644.20, 909,966.30 and 512,165.80 is: 768,248.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,644.20 : 909,966.30 = 512,165.80 : x
  2. Step 2: Convert to fraction form
    606,644.20/909,966.30 = 512,165.80/x
  3. Step 3: Cross multiply
    606,644.20x = 909,966.30 × 512,165.80
  4. Step 4: Simplify right side
    606,644.20x = 466,053,618,012.54
  5. Step 5: Solve for x
    x = 466,053,618,012.54/606,644.20
  6. Step 6: Final answer
    x = 768,248.70

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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.