Home / 387,323.08-534,506.16-217,557.34

Finding the Fourth Proportional to 387,323.08, 534,506.16 and 217,557.34

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Solution

The fourth proportional to 387,323.08, 534,506.16 and 217,557.34 is: 300,229.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,323.08 : 534,506.16 = 217,557.34 : x
  2. Step 2: Convert to fraction form
    387,323.08/534,506.16 = 217,557.34/x
  3. Step 3: Cross multiply
    387,323.08x = 534,506.16 × 217,557.34
  4. Step 4: Simplify right side
    387,323.08x = 116,285,738,383.21
  5. Step 5: Solve for x
    x = 116,285,738,383.21/387,323.08
  6. Step 6: Final answer
    x = 300,229.30

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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.