Home / 816,727.47-1,127,116.06-449,238.80

Finding the Fourth Proportional to 816,727.47, 1,127,116.06 and 449,238.80

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Solution

The fourth proportional to 816,727.47, 1,127,116.06 and 449,238.80 is: 619,967.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,727.47 : 1,127,116.06 = 449,238.80 : x
  2. Step 2: Convert to fraction form
    816,727.47/1,127,116.06 = 449,238.80/x
  3. Step 3: Cross multiply
    816,727.47x = 1,127,116.06 × 449,238.80
  4. Step 4: Simplify right side
    816,727.47x = 506,344,264,136.76
  5. Step 5: Solve for x
    x = 506,344,264,136.76/816,727.47
  6. Step 6: Final answer
    x = 619,967.23

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1.5x scale

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.