Home / 521,129.39-719,607.36-327,859.23

Finding the Fourth Proportional to 521,129.39, 719,607.36 and 327,859.23

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Solution

The fourth proportional to 521,129.39, 719,607.36 and 327,859.23 is: 452,728.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,129.39 : 719,607.36 = 327,859.23 : x
  2. Step 2: Convert to fraction form
    521,129.39/719,607.36 = 327,859.23/x
  3. Step 3: Cross multiply
    521,129.39x = 719,607.36 × 327,859.23
  4. Step 4: Simplify right side
    521,129.39x = 235,929,918,879.93
  5. Step 5: Solve for x
    x = 235,929,918,879.93/521,129.39
  6. Step 6: Final answer
    x = 452,728.10

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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.