Home / 854,953.50-1,180,306.71-640,016.22

Finding the Fourth Proportional to 854,953.50, 1,180,306.71 and 640,016.22

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Solution

The fourth proportional to 854,953.50, 1,180,306.71 and 640,016.22 is: 883,574.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,953.50 : 1,180,306.71 = 640,016.22 : x
  2. Step 2: Convert to fraction form
    854,953.50/1,180,306.71 = 640,016.22/x
  3. Step 3: Cross multiply
    854,953.50x = 1,180,306.71 × 640,016.22
  4. Step 4: Simplify right side
    854,953.50x = 755,415,438,974.84
  5. Step 5: Solve for x
    x = 755,415,438,974.84/854,953.50
  6. Step 6: Final answer
    x = 883,574.88

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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.