Home / 388,717.18-536,246.34-227,472.40

Finding the Fourth Proportional to 388,717.18, 536,246.34 and 227,472.40

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Solution

The fourth proportional to 388,717.18, 536,246.34 and 227,472.40 is: 313,804.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,717.18 : 536,246.34 = 227,472.40 : x
  2. Step 2: Convert to fraction form
    388,717.18/536,246.34 = 227,472.40/x
  3. Step 3: Cross multiply
    388,717.18x = 536,246.34 × 227,472.40
  4. Step 4: Simplify right side
    388,717.18x = 121,981,241,951.02
  5. Step 5: Solve for x
    x = 121,981,241,951.02/388,717.18
  6. Step 6: Final answer
    x = 313,804.61

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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.