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Finding the Fourth Proportional to 1,984,663.98, 2,738,753.60 and 1,125,282.32

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Solution

The fourth proportional to 1,984,663.98, 2,738,753.60 and 1,125,282.32 is: 1,552,842.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984,663.98 : 2,738,753.60 = 1,125,282.32 : x
  2. Step 2: Convert to fraction form
    1,984,663.98/2,738,753.60 = 1,125,282.32/x
  3. Step 3: Cross multiply
    1,984,663.98x = 2,738,753.60 × 1,125,282.32
  4. Step 4: Simplify right side
    1,984,663.98x = 3,081,871,004,916.35
  5. Step 5: Solve for x
    x = 3,081,871,004,916.35/1,984,663.98
  6. Step 6: Final answer
    x = 1,552,842.72

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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.