Home / 499,256.87-688,974.56-269,813.38

Finding the Fourth Proportional to 499,256.87, 688,974.56 and 269,813.38

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Solution

The fourth proportional to 499,256.87, 688,974.56 and 269,813.38 is: 372,342.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,256.87 : 688,974.56 = 269,813.38 : x
  2. Step 2: Convert to fraction form
    499,256.87/688,974.56 = 269,813.38/x
  3. Step 3: Cross multiply
    499,256.87x = 688,974.56 × 269,813.38
  4. Step 4: Simplify right side
    499,256.87x = 185,894,553,999.74
  5. Step 5: Solve for x
    x = 185,894,553,999.74/499,256.87
  6. Step 6: Final answer
    x = 372,342.51

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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.