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Finding the Fourth Proportional to 1,834,625.70, 2,751,938.55 and 984,320.10

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Solution

The fourth proportional to 1,834,625.70, 2,751,938.55 and 984,320.10 is: 1,476,480.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,834,625.70 : 2,751,938.55 = 984,320.10 : x
  2. Step 2: Convert to fraction form
    1,834,625.70/2,751,938.55 = 984,320.10/x
  3. Step 3: Cross multiply
    1,834,625.70x = 2,751,938.55 × 984,320.10
  4. Step 4: Simplify right side
    1,834,625.70x = 2,708,788,428,729.86
  5. Step 5: Solve for x
    x = 2,708,788,428,729.86/1,834,625.70
  6. Step 6: Final answer
    x = 1,476,480.15

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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.