Home / 821,433.60-1,132,971.84-519,336

Finding the Fourth Proportional to 821,433.60, 1,132,971.84 and 519,336

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Solution

The fourth proportional to 821,433.60, 1,132,971.84 and 519,336 is: 716,300.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,433.60 : 1,132,971.84 = 519,336 : x
  2. Step 2: Convert to fraction form
    821,433.60/1,132,971.84 = 519,336/x
  3. Step 3: Cross multiply
    821,433.60x = 1,132,971.84 × 519,336
  4. Step 4: Simplify right side
    821,433.60x = 588,393,063,498.24
  5. Step 5: Solve for x
    x = 588,393,063,498.24/821,433.60
  6. Step 6: Final answer
    x = 716,300.21

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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.