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Finding the Fourth Proportional to 1,935,768.04, 2,671,390.76 and 1,064,640.90

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Solution

The fourth proportional to 1,935,768.04, 2,671,390.76 and 1,064,640.90 is: 1,469,221.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935,768.04 : 2,671,390.76 = 1,064,640.90 : x
  2. Step 2: Convert to fraction form
    1,935,768.04/2,671,390.76 = 1,064,640.90/x
  3. Step 3: Cross multiply
    1,935,768.04x = 2,671,390.76 × 1,064,640.90
  4. Step 4: Simplify right side
    1,935,768.04x = 2,844,071,862,978.08
  5. Step 5: Solve for x
    x = 2,844,071,862,978.08/1,935,768.04
  6. Step 6: Final answer
    x = 1,469,221.42

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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.