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Finding the Fourth Proportional to 1,942,978.32, 2,681,502.84 and 1,452,095.28

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Solution

The fourth proportional to 1,942,978.32, 2,681,502.84 and 1,452,095.28 is: 2,004,035.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942,978.32 : 2,681,502.84 = 1,452,095.28 : x
  2. Step 2: Convert to fraction form
    1,942,978.32/2,681,502.84 = 1,452,095.28/x
  3. Step 3: Cross multiply
    1,942,978.32x = 2,681,502.84 × 1,452,095.28
  4. Step 4: Simplify right side
    1,942,978.32x = 3,893,797,617,270.60
  5. Step 5: Solve for x
    x = 3,893,797,617,270.60/1,942,978.32
  6. Step 6: Final answer
    x = 2,004,035.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.