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Finding the Fourth Proportional to 755,281,873.82, 1,034,739,858.69 and 726,974,079.67

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Solution

The fourth proportional to 755,281,873.82, 1,034,739,858.69 and 726,974,079.67 is: 995,958,042.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,281,873.82 : 1,034,739,858.69 = 726,974,079.67 : x
  2. Step 2: Convert to fraction form
    755,281,873.82/1,034,739,858.69 = 726,974,079.67/x
  3. Step 3: Cross multiply
    755,281,873.82x = 1,034,739,858.69 × 726,974,079.67
  4. Step 4: Simplify right side
    755,281,873.82x = 752,229,056,462,891,776
  5. Step 5: Solve for x
    x = 752,229,056,462,891,776/755,281,873.82
  6. Step 6: Final answer
    x = 995,958,042.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.