Home / 782,518.26-1,174,213.51-422,681.86

Finding the Fourth Proportional to 782,518.26, 1,174,213.51 and 422,681.86

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Solution

The fourth proportional to 782,518.26, 1,174,213.51 and 422,681.86 is: 634,258.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,518.26 : 1,174,213.51 = 422,681.86 : x
  2. Step 2: Convert to fraction form
    782,518.26/1,174,213.51 = 422,681.86/x
  3. Step 3: Cross multiply
    782,518.26x = 1,174,213.51 × 422,681.86
  4. Step 4: Simplify right side
    782,518.26x = 496,318,750,443.93
  5. Step 5: Solve for x
    x = 496,318,750,443.93/782,518.26
  6. Step 6: Final answer
    x = 634,258.36

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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.