Home / 351,929.28-527,813.04-209,814.78

Finding the Fourth Proportional to 351,929.28, 527,813.04 and 209,814.78

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Solution

The fourth proportional to 351,929.28, 527,813.04 and 209,814.78 is: 314,673.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,929.28 : 527,813.04 = 209,814.78 : x
  2. Step 2: Convert to fraction form
    351,929.28/527,813.04 = 209,814.78/x
  3. Step 3: Cross multiply
    351,929.28x = 527,813.04 × 209,814.78
  4. Step 4: Simplify right side
    351,929.28x = 110,742,976,868.73
  5. Step 5: Solve for x
    x = 110,742,976,868.73/351,929.28
  6. Step 6: Final answer
    x = 314,673.95

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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.