Home / 1,252,805.46-1,728,871.53-679,845.63

Finding the Fourth Proportional to 1,252,805.46, 1,728,871.53 and 679,845.63

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Solution

The fourth proportional to 1,252,805.46, 1,728,871.53 and 679,845.63 is: 938,186.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,805.46 : 1,728,871.53 = 679,845.63 : x
  2. Step 2: Convert to fraction form
    1,252,805.46/1,728,871.53 = 679,845.63/x
  3. Step 3: Cross multiply
    1,252,805.46x = 1,728,871.53 × 679,845.63
  4. Step 4: Simplify right side
    1,252,805.46x = 1,175,365,754,501.91
  5. Step 5: Solve for x
    x = 1,175,365,754,501.91/1,252,805.46
  6. Step 6: Final answer
    x = 938,186.97

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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.