Home / 763,757.76-1,053,981.32-419,586.28

Finding the Fourth Proportional to 763,757.76, 1,053,981.32 and 419,586.28

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Solution

The fourth proportional to 763,757.76, 1,053,981.32 and 419,586.28 is: 579,026.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,757.76 : 1,053,981.32 = 419,586.28 : x
  2. Step 2: Convert to fraction form
    763,757.76/1,053,981.32 = 419,586.28/x
  3. Step 3: Cross multiply
    763,757.76x = 1,053,981.32 × 419,586.28
  4. Step 4: Simplify right side
    763,757.76x = 442,236,096,515.41
  5. Step 5: Solve for x
    x = 442,236,096,515.41/763,757.76
  6. Step 6: Final answer
    x = 579,026.65

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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.