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Finding the Fourth Proportional to 1,256,589,327.53, 1,734,215,758.49 and 938,497,330.40

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Solution

The fourth proportional to 1,256,589,327.53, 1,734,215,758.49 and 938,497,330.40 is: 1,295,217,796.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,589,327.53 : 1,734,215,758.49 = 938,497,330.40 : x
  2. Step 2: Convert to fraction form
    1,256,589,327.53/1,734,215,758.49 = 938,497,330.40/x
  3. Step 3: Cross multiply
    1,256,589,327.53x = 1,734,215,758.49 × 938,497,330.40
  4. Step 4: Simplify right side
    1,256,589,327.53x = 1,627,556,859,674,151,424
  5. Step 5: Solve for x
    x = 1,627,556,859,674,151,424/1,256,589,327.53
  6. Step 6: Final answer
    x = 1,295,217,796.31

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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.