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Finding the Fourth Proportional to 2,113,798.80, 2,917,798.80 and 1,254,358.82

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Solution

The fourth proportional to 2,113,798.80, 2,917,798.80 and 1,254,358.82 is: 1,731,464.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113,798.80 : 2,917,798.80 = 1,254,358.82 : x
  2. Step 2: Convert to fraction form
    2,113,798.80/2,917,798.80 = 1,254,358.82/x
  3. Step 3: Cross multiply
    2,113,798.80x = 2,917,798.80 × 1,254,358.82
  4. Step 4: Simplify right side
    2,113,798.80x = 3,659,966,659,765.42
  5. Step 5: Solve for x
    x = 3,659,966,659,765.42/2,113,798.80
  6. Step 6: Final answer
    x = 1,731,464.06

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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.