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Finding the Fourth Proportional to 1,886,541.78, 2,603,428.02 and 1,027,102.08

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Solution

The fourth proportional to 1,886,541.78, 2,603,428.02 and 1,027,102.08 is: 1,417,401.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,886,541.78 : 2,603,428.02 = 1,027,102.08 : x
  2. Step 2: Convert to fraction form
    1,886,541.78/2,603,428.02 = 1,027,102.08/x
  3. Step 3: Cross multiply
    1,886,541.78x = 2,603,428.02 × 1,027,102.08
  4. Step 4: Simplify right side
    1,886,541.78x = 2,673,986,334,472.28
  5. Step 5: Solve for x
    x = 2,673,986,334,472.28/1,886,541.78
  6. Step 6: Final answer
    x = 1,417,401.07

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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.