Home / 721,851.54-996,132.63-415,928.58

Finding the Fourth Proportional to 721,851.54, 996,132.63 and 415,928.58

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Solution

The fourth proportional to 721,851.54, 996,132.63 and 415,928.58 is: 573,968.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,851.54 : 996,132.63 = 415,928.58 : x
  2. Step 2: Convert to fraction form
    721,851.54/996,132.63 = 415,928.58/x
  3. Step 3: Cross multiply
    721,851.54x = 996,132.63 × 415,928.58
  4. Step 4: Simplify right side
    721,851.54x = 414,320,030,287.57
  5. Step 5: Solve for x
    x = 414,320,030,287.57/721,851.54
  6. Step 6: Final answer
    x = 573,968.48

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Double scale
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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.