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Finding the Fourth Proportional to 747,422.40, 1,044,029.40 and 747,422.40

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Solution

The fourth proportional to 747,422.40, 1,044,029.40 and 747,422.40 is: 1,044,029.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,422.40 : 1,044,029.40 = 747,422.40 : x
  2. Step 2: Convert to fraction form
    747,422.40/1,044,029.40 = 747,422.40/x
  3. Step 3: Cross multiply
    747,422.40x = 1,044,029.40 × 747,422.40
  4. Step 4: Simplify right side
    747,422.40x = 780,330,959,818.56
  5. Step 5: Solve for x
    x = 780,330,959,818.56/747,422.40
  6. Step 6: Final answer
    x = 1,044,029.40

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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.