Home / 387,023.34-534,170.79-223,686.79

Finding the Fourth Proportional to 387,023.34, 534,170.79 and 223,686.79

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Solution

The fourth proportional to 387,023.34, 534,170.79 and 223,686.79 is: 308,733.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,023.34 : 534,170.79 = 223,686.79 : x
  2. Step 2: Convert to fraction form
    387,023.34/534,170.79 = 223,686.79/x
  3. Step 3: Cross multiply
    387,023.34x = 534,170.79 × 223,686.79
  4. Step 4: Simplify right side
    387,023.34x = 119,486,947,991.44
  5. Step 5: Solve for x
    x = 119,486,947,991.44/387,023.34
  6. Step 6: Final answer
    x = 308,733.18

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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.