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Finding the Fourth Proportional to 1,314,216.30, 1,971,324.45 and 1,137,069.30

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Solution

The fourth proportional to 1,314,216.30, 1,971,324.45 and 1,137,069.30 is: 1,705,603.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,216.30 : 1,971,324.45 = 1,137,069.30 : x
  2. Step 2: Convert to fraction form
    1,314,216.30/1,971,324.45 = 1,137,069.30/x
  3. Step 3: Cross multiply
    1,314,216.30x = 1,971,324.45 × 1,137,069.30
  4. Step 4: Simplify right side
    1,314,216.30x = 2,241,532,512,434.39
  5. Step 5: Solve for x
    x = 2,241,532,512,434.39/1,314,216.30
  6. Step 6: Final answer
    x = 1,705,603.95

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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.