Home / 631,657.44-871,776.17-402,141.41

Finding the Fourth Proportional to 631,657.44, 871,776.17 and 402,141.41

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Solution

The fourth proportional to 631,657.44, 871,776.17 and 402,141.41 is: 555,011.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,657.44 : 871,776.17 = 402,141.41 : x
  2. Step 2: Convert to fraction form
    631,657.44/871,776.17 = 402,141.41/x
  3. Step 3: Cross multiply
    631,657.44x = 871,776.17 × 402,141.41
  4. Step 4: Simplify right side
    631,657.44x = 350,577,296,615.80
  5. Step 5: Solve for x
    x = 350,577,296,615.80/631,657.44
  6. Step 6: Final answer
    x = 555,011.74

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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.