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Finding the Fourth Proportional to 1,192,943, 1,646,261.34 and 656,399

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Solution

The fourth proportional to 1,192,943, 1,646,261.34 and 656,399 is: 905,830.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,943 : 1,646,261.34 = 656,399 : x
  2. Step 2: Convert to fraction form
    1,192,943/1,646,261.34 = 656,399/x
  3. Step 3: Cross multiply
    1,192,943x = 1,646,261.34 × 656,399
  4. Step 4: Simplify right side
    1,192,943x = 1,080,604,297,314.66
  5. Step 5: Solve for x
    x = 1,080,604,297,314.66/1,192,943
  6. Step 6: Final answer
    x = 905,830.62

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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.