Home / 643,586.71-965,536.14-194,280.76

Finding the Fourth Proportional to 643,586.71, 965,536.14 and 194,280.76

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Solution

The fourth proportional to 643,586.71, 965,536.14 and 194,280.76 is: 291,468.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,586.71 : 965,536.14 = 194,280.76 : x
  2. Step 2: Convert to fraction form
    643,586.71/965,536.14 = 194,280.76/x
  3. Step 3: Cross multiply
    643,586.71x = 965,536.14 × 194,280.76
  4. Step 4: Simplify right side
    643,586.71x = 187,585,090,258.99
  5. Step 5: Solve for x
    x = 187,585,090,258.99/643,586.71
  6. Step 6: Final answer
    x = 291,468.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.