Home / 823,717.09-1,136,865.59-565,381.81

Finding the Fourth Proportional to 823,717.09, 1,136,865.59 and 565,381.81

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Solution

The fourth proportional to 823,717.09, 1,136,865.59 and 565,381.81 is: 780,320.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,717.09 : 1,136,865.59 = 565,381.81 : x
  2. Step 2: Convert to fraction form
    823,717.09/1,136,865.59 = 565,381.81/x
  3. Step 3: Cross multiply
    823,717.09x = 1,136,865.59 × 565,381.81
  4. Step 4: Simplify right side
    823,717.09x = 642,763,116,489.68
  5. Step 5: Solve for x
    x = 642,763,116,489.68/823,717.09
  6. Step 6: Final answer
    x = 780,320.24

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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.