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Finding the Fourth Proportional to 1,229,799, 1,697,122.62 and 693,255

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Solution

The fourth proportional to 1,229,799, 1,697,122.62 and 693,255 is: 956,691.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,799 : 1,697,122.62 = 693,255 : x
  2. Step 2: Convert to fraction form
    1,229,799/1,697,122.62 = 693,255/x
  3. Step 3: Cross multiply
    1,229,799x = 1,697,122.62 × 693,255
  4. Step 4: Simplify right side
    1,229,799x = 1,176,538,741,928.10
  5. Step 5: Solve for x
    x = 1,176,538,741,928.10/1,229,799
  6. Step 6: Final answer
    x = 956,691.90

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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.