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Finding the Fourth Proportional to 412,839.10, 577,274.90 and 412,839.10

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Solution

The fourth proportional to 412,839.10, 577,274.90 and 412,839.10 is: 577,274.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,839.10 : 577,274.90 = 412,839.10 : x
  2. Step 2: Convert to fraction form
    412,839.10/577,274.90 = 412,839.10/x
  3. Step 3: Cross multiply
    412,839.10x = 577,274.90 × 412,839.10
  4. Step 4: Simplify right side
    412,839.10x = 238,321,650,168.59
  5. Step 5: Solve for x
    x = 238,321,650,168.59/412,839.10
  6. Step 6: Final answer
    x = 577,274.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.