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Finding the Fourth Proportional to 1,277,787.03, 1,918,849.88 and 854,045.88

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Solution

The fourth proportional to 1,277,787.03, 1,918,849.88 and 854,045.88 is: 1,282,518.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,787.03 : 1,918,849.88 = 854,045.88 : x
  2. Step 2: Convert to fraction form
    1,277,787.03/1,918,849.88 = 854,045.88/x
  3. Step 3: Cross multiply
    1,277,787.03x = 1,918,849.88 × 854,045.88
  4. Step 4: Simplify right side
    1,277,787.03x = 1,638,785,834,352.49
  5. Step 5: Solve for x
    x = 1,638,785,834,352.49/1,277,787.03
  6. Step 6: Final answer
    x = 1,282,518.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.