Home / 885,717.27-1,328,786.81-286,678.53

Finding the Fourth Proportional to 885,717.27, 1,328,786.81 and 286,678.53

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Solution

The fourth proportional to 885,717.27, 1,328,786.81 and 286,678.53 is: 430,086.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,717.27 : 1,328,786.81 = 286,678.53 : x
  2. Step 2: Convert to fraction form
    885,717.27/1,328,786.81 = 286,678.53/x
  3. Step 3: Cross multiply
    885,717.27x = 1,328,786.81 × 286,678.53
  4. Step 4: Simplify right side
    885,717.27x = 380,934,647,940.80
  5. Step 5: Solve for x
    x = 380,934,647,940.80/885,717.27
  6. Step 6: Final answer
    x = 430,086.06

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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.