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Finding the Fourth Proportional to 1,168,135, 1,612,026.30 and 631,591

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Solution

The fourth proportional to 1,168,135, 1,612,026.30 and 631,591 is: 871,595.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,135 : 1,612,026.30 = 631,591 : x
  2. Step 2: Convert to fraction form
    1,168,135/1,612,026.30 = 631,591/x
  3. Step 3: Cross multiply
    1,168,135x = 1,612,026.30 × 631,591
  4. Step 4: Simplify right side
    1,168,135x = 1,018,141,302,843.30
  5. Step 5: Solve for x
    x = 1,018,141,302,843.30/1,168,135
  6. Step 6: Final answer
    x = 871,595.58

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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.