Home / 631,846.08-871,949.34-377,191.80

Finding the Fourth Proportional to 631,846.08, 871,949.34 and 377,191.80

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Solution

The fourth proportional to 631,846.08, 871,949.34 and 377,191.80 is: 520,525.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,846.08 : 871,949.34 = 377,191.80 : x
  2. Step 2: Convert to fraction form
    631,846.08/871,949.34 = 377,191.80/x
  3. Step 3: Cross multiply
    631,846.08x = 871,949.34 × 377,191.80
  4. Step 4: Simplify right side
    631,846.08x = 328,892,141,063.41
  5. Step 5: Solve for x
    x = 328,892,141,063.41/631,846.08
  6. Step 6: Final answer
    x = 520,525.73

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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.