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Finding the Fourth Proportional to 1,266,906.09, 1,748,330.82 and 693,966.90

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Solution

The fourth proportional to 1,266,906.09, 1,748,330.82 and 693,966.90 is: 957,674.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,906.09 : 1,748,330.82 = 693,966.90 : x
  2. Step 2: Convert to fraction form
    1,266,906.09/1,748,330.82 = 693,966.90/x
  3. Step 3: Cross multiply
    1,266,906.09x = 1,748,330.82 × 693,966.90
  4. Step 4: Simplify right side
    1,266,906.09x = 1,213,283,719,329.86
  5. Step 5: Solve for x
    x = 1,213,283,719,329.86/1,266,906.09
  6. Step 6: Final answer
    x = 957,674.55

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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.