Home / 843,888.28-1,264,136.28-393,988.36

Finding the Fourth Proportional to 843,888.28, 1,264,136.28 and 393,988.36

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Solution

The fourth proportional to 843,888.28, 1,264,136.28 and 393,988.36 is: 590,190.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,888.28 : 1,264,136.28 = 393,988.36 : x
  2. Step 2: Convert to fraction form
    843,888.28/1,264,136.28 = 393,988.36/x
  3. Step 3: Cross multiply
    843,888.28x = 1,264,136.28 × 393,988.36
  4. Step 4: Simplify right side
    843,888.28x = 498,054,979,773.70
  5. Step 5: Solve for x
    x = 498,054,979,773.70/843,888.28
  6. Step 6: Final answer
    x = 590,190.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.