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Finding the Fourth Proportional to 1,979,720.54, 2,732,014.34 and 1,074,302.54

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Solution

The fourth proportional to 1,979,720.54, 2,732,014.34 and 1,074,302.54 is: 1,482,537.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979,720.54 : 2,732,014.34 = 1,074,302.54 : x
  2. Step 2: Convert to fraction form
    1,979,720.54/2,732,014.34 = 1,074,302.54/x
  3. Step 3: Cross multiply
    1,979,720.54x = 2,732,014.34 × 1,074,302.54
  4. Step 4: Simplify right side
    1,979,720.54x = 2,935,009,944,778.42
  5. Step 5: Solve for x
    x = 2,935,009,944,778.42/1,979,720.54
  6. Step 6: Final answer
    x = 1,482,537.50

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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.