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Finding the Fourth Proportional to 1,966,114.66, 2,713,680.75 and 1,286,657.50

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Solution

The fourth proportional to 1,966,114.66, 2,713,680.75 and 1,286,657.50 is: 1,775,876.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,966,114.66 : 2,713,680.75 = 1,286,657.50 : x
  2. Step 2: Convert to fraction form
    1,966,114.66/2,713,680.75 = 1,286,657.50/x
  3. Step 3: Cross multiply
    1,966,114.66x = 2,713,680.75 × 1,286,657.50
  4. Step 4: Simplify right side
    1,966,114.66x = 3,491,577,689,593.13
  5. Step 5: Solve for x
    x = 3,491,577,689,593.13/1,966,114.66
  6. Step 6: Final answer
    x = 1,775,876.94

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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.