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Finding the Fourth Proportional to 1,974,579.06, 2,961,868.59 and 478,671.06

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Solution

The fourth proportional to 1,974,579.06, 2,961,868.59 and 478,671.06 is: 718,006.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974,579.06 : 2,961,868.59 = 478,671.06 : x
  2. Step 2: Convert to fraction form
    1,974,579.06/2,961,868.59 = 478,671.06/x
  3. Step 3: Cross multiply
    1,974,579.06x = 2,961,868.59 × 478,671.06
  4. Step 4: Simplify right side
    1,974,579.06x = 1,417,760,777,556.01
  5. Step 5: Solve for x
    x = 1,417,760,777,556.01/1,974,579.06
  6. Step 6: Final answer
    x = 718,006.59

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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.