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Finding the Fourth Proportional to 552,440.20, 775,515.80 and 552,440.20

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Solution

The fourth proportional to 552,440.20, 775,515.80 and 552,440.20 is: 775,515.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,440.20 : 775,515.80 = 552,440.20 : x
  2. Step 2: Convert to fraction form
    552,440.20/775,515.80 = 552,440.20/x
  3. Step 3: Cross multiply
    552,440.20x = 775,515.80 × 552,440.20
  4. Step 4: Simplify right side
    552,440.20x = 428,426,103,655.16
  5. Step 5: Solve for x
    x = 428,426,103,655.16/552,440.20
  6. Step 6: Final answer
    x = 775,515.80

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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.