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Finding the Fourth Proportional to 2,049,978.60, 3,074,967.74 and 1,038,943.08

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Solution

The fourth proportional to 2,049,978.60, 3,074,967.74 and 1,038,943.08 is: 1,558,414.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,049,978.60 : 3,074,967.74 = 1,038,943.08 : x
  2. Step 2: Convert to fraction form
    2,049,978.60/3,074,967.74 = 1,038,943.08/x
  3. Step 3: Cross multiply
    2,049,978.60x = 3,074,967.74 × 1,038,943.08
  4. Step 4: Simplify right side
    2,049,978.60x = 3,194,716,454,696.24
  5. Step 5: Solve for x
    x = 3,194,716,454,696.24/2,049,978.60
  6. Step 6: Final answer
    x = 1,558,414.54

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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.