Home / 387,088.26-534,168.09-217,329.54

Finding the Fourth Proportional to 387,088.26, 534,168.09 and 217,329.54

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Solution

The fourth proportional to 387,088.26, 534,168.09 and 217,329.54 is: 299,907.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,088.26 : 534,168.09 = 217,329.54 : x
  2. Step 2: Convert to fraction form
    387,088.26/534,168.09 = 217,329.54/x
  3. Step 3: Cross multiply
    387,088.26x = 534,168.09 × 217,329.54
  4. Step 4: Simplify right side
    387,088.26x = 116,090,505,282.38
  5. Step 5: Solve for x
    x = 116,090,505,282.38/387,088.26
  6. Step 6: Final answer
    x = 299,907.07

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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.