Home / 821,441.60-1,132,982.88-519,344

Finding the Fourth Proportional to 821,441.60, 1,132,982.88 and 519,344

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Solution

The fourth proportional to 821,441.60, 1,132,982.88 and 519,344 is: 716,311.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,441.60 : 1,132,982.88 = 519,344 : x
  2. Step 2: Convert to fraction form
    821,441.60/1,132,982.88 = 519,344/x
  3. Step 3: Cross multiply
    821,441.60x = 1,132,982.88 × 519,344
  4. Step 4: Simplify right side
    821,441.60x = 588,407,860,830.72
  5. Step 5: Solve for x
    x = 588,407,860,830.72/821,441.60
  6. Step 6: Final answer
    x = 716,311.25

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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.