Home / 1,261,931.78-1,741,456.75-688,971.95

Finding the Fourth Proportional to 1,261,931.78, 1,741,456.75 and 688,971.95

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Solution

The fourth proportional to 1,261,931.78, 1,741,456.75 and 688,971.95 is: 950,776.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,931.78 : 1,741,456.75 = 688,971.95 : x
  2. Step 2: Convert to fraction form
    1,261,931.78/1,741,456.75 = 688,971.95/x
  3. Step 3: Cross multiply
    1,261,931.78x = 1,741,456.75 × 688,971.95
  4. Step 4: Simplify right side
    1,261,931.78x = 1,199,814,855,178.58
  5. Step 5: Solve for x
    x = 1,199,814,855,178.58/1,261,931.78
  6. Step 6: Final answer
    x = 950,776.32

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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.