Home / 387,246.57-534,398.51-215,192.54

Finding the Fourth Proportional to 387,246.57, 534,398.51 and 215,192.54

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Solution

The fourth proportional to 387,246.57, 534,398.51 and 215,192.54 is: 296,964.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,246.57 : 534,398.51 = 215,192.54 : x
  2. Step 2: Convert to fraction form
    387,246.57/534,398.51 = 215,192.54/x
  3. Step 3: Cross multiply
    387,246.57x = 534,398.51 × 215,192.54
  4. Step 4: Simplify right side
    387,246.57x = 114,998,574,613.09
  5. Step 5: Solve for x
    x = 114,998,574,613.09/387,246.57
  6. Step 6: Final answer
    x = 296,964.74

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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.