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Finding the Fourth Proportional to 2,804,978.50, 4,215,065.13 and 1,526,531.20

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Solution

The fourth proportional to 2,804,978.50, 4,215,065.13 and 1,526,531.20 is: 2,293,931.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,804,978.50 : 4,215,065.13 = 1,526,531.20 : x
  2. Step 2: Convert to fraction form
    2,804,978.50/4,215,065.13 = 1,526,531.20/x
  3. Step 3: Cross multiply
    2,804,978.50x = 4,215,065.13 × 1,526,531.20
  4. Step 4: Simplify right side
    2,804,978.50x = 6,434,428,420,439.39
  5. Step 5: Solve for x
    x = 6,434,428,420,439.39/2,804,978.50
  6. Step 6: Final answer
    x = 2,293,931.46

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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.