Home / 681,060.41-939,975.47-519,610.40

Finding the Fourth Proportional to 681,060.41, 939,975.47 and 519,610.40

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Solution

The fourth proportional to 681,060.41, 939,975.47 and 519,610.40 is: 717,147.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,060.41 : 939,975.47 = 519,610.40 : x
  2. Step 2: Convert to fraction form
    681,060.41/939,975.47 = 519,610.40/x
  3. Step 3: Cross multiply
    681,060.41x = 939,975.47 × 519,610.40
  4. Step 4: Simplify right side
    681,060.41x = 488,421,029,956.89
  5. Step 5: Solve for x
    x = 488,421,029,956.89/681,060.41
  6. Step 6: Final answer
    x = 717,147.88

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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.