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Finding the Fourth Proportional to 2,655,279.70, 3,982,919.55 and 973,039.30

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Solution

The fourth proportional to 2,655,279.70, 3,982,919.55 and 973,039.30 is: 1,459,558.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655,279.70 : 3,982,919.55 = 973,039.30 : x
  2. Step 2: Convert to fraction form
    2,655,279.70/3,982,919.55 = 973,039.30/x
  3. Step 3: Cross multiply
    2,655,279.70x = 3,982,919.55 × 973,039.30
  4. Step 4: Simplify right side
    2,655,279.70x = 3,875,537,250,888.32
  5. Step 5: Solve for x
    x = 3,875,537,250,888.32/2,655,279.70
  6. Step 6: Final answer
    x = 1,459,558.95

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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.