Home / 386,744.10-533,739-214,678.23

Finding the Fourth Proportional to 386,744.10, 533,739 and 214,678.23

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Solution

The fourth proportional to 386,744.10, 533,739 and 214,678.23 is: 296,273.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,744.10 : 533,739 = 214,678.23 : x
  2. Step 2: Convert to fraction form
    386,744.10/533,739 = 214,678.23/x
  3. Step 3: Cross multiply
    386,744.10x = 533,739 × 214,678.23
  4. Step 4: Simplify right side
    386,744.10x = 114,582,143,801.97
  5. Step 5: Solve for x
    x = 114,582,143,801.97/386,744.10
  6. Step 6: Final answer
    x = 296,273.80

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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.