Home / 387,153.51-534,286.92-215,084.46

Finding the Fourth Proportional to 387,153.51, 534,286.92 and 215,084.46

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Solution

The fourth proportional to 387,153.51, 534,286.92 and 215,084.46 is: 296,824.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,153.51 : 534,286.92 = 215,084.46 : x
  2. Step 2: Convert to fraction form
    387,153.51/534,286.92 = 215,084.46/x
  3. Step 3: Cross multiply
    387,153.51x = 534,286.92 × 215,084.46
  4. Step 4: Simplify right side
    387,153.51x = 114,916,813,673.26
  5. Step 5: Solve for x
    x = 114,916,813,673.26/387,153.51
  6. Step 6: Final answer
    x = 296,824.93

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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.