Home / 1,255,153.11-1,732,162.79-711,283.11

Finding the Fourth Proportional to 1,255,153.11, 1,732,162.79 and 711,283.11

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Solution

The fourth proportional to 1,255,153.11, 1,732,162.79 and 711,283.11 is: 981,599.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,153.11 : 1,732,162.79 = 711,283.11 : x
  2. Step 2: Convert to fraction form
    1,255,153.11/1,732,162.79 = 711,283.11/x
  3. Step 3: Cross multiply
    1,255,153.11x = 1,732,162.79 × 711,283.11
  4. Step 4: Simplify right side
    1,255,153.11x = 1,232,058,136,297.48
  5. Step 5: Solve for x
    x = 1,232,058,136,297.48/1,255,153.11
  6. Step 6: Final answer
    x = 981,599.88

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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.