Home / 821,781.73-1,134,037.02-459,208.57

Finding the Fourth Proportional to 821,781.73, 1,134,037.02 and 459,208.57

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Solution

The fourth proportional to 821,781.73, 1,134,037.02 and 459,208.57 is: 633,695.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,781.73 : 1,134,037.02 = 459,208.57 : x
  2. Step 2: Convert to fraction form
    821,781.73/1,134,037.02 = 459,208.57/x
  3. Step 3: Cross multiply
    821,781.73x = 1,134,037.02 × 459,208.57
  4. Step 4: Simplify right side
    821,781.73x = 520,759,515,419.95
  5. Step 5: Solve for x
    x = 520,759,515,419.95/821,781.73
  6. Step 6: Final answer
    x = 633,695.66

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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.