Home / 691,138.80-1,036,708.20-573,040.80

Finding the Fourth Proportional to 691,138.80, 1,036,708.20 and 573,040.80

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Solution

The fourth proportional to 691,138.80, 1,036,708.20 and 573,040.80 is: 859,561.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,138.80 : 1,036,708.20 = 573,040.80 : x
  2. Step 2: Convert to fraction form
    691,138.80/1,036,708.20 = 573,040.80/x
  3. Step 3: Cross multiply
    691,138.80x = 1,036,708.20 × 573,040.80
  4. Step 4: Simplify right side
    691,138.80x = 594,076,096,294.56
  5. Step 5: Solve for x
    x = 594,076,096,294.56/691,138.80
  6. Step 6: Final answer
    x = 859,561.20

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Double scale
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Similar ratio
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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.