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Finding the Fourth Proportional to 2,158,497.52, 2,978,978.52 and 1,795,280.56

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Solution

The fourth proportional to 2,158,497.52, 2,978,978.52 and 1,795,280.56 is: 2,477,696.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,497.52 : 2,978,978.52 = 1,795,280.56 : x
  2. Step 2: Convert to fraction form
    2,158,497.52/2,978,978.52 = 1,795,280.56/x
  3. Step 3: Cross multiply
    2,158,497.52x = 2,978,978.52 × 1,795,280.56
  4. Step 4: Simplify right side
    2,158,497.52x = 5,348,102,225,613.57
  5. Step 5: Solve for x
    x = 5,348,102,225,613.57/2,158,497.52
  6. Step 6: Final answer
    x = 2,477,696.72

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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.