Home / 387,408.41-534,666.89-234,530.83

Finding the Fourth Proportional to 387,408.41, 534,666.89 and 234,530.83

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Solution

The fourth proportional to 387,408.41, 534,666.89 and 234,530.83 is: 323,678.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,408.41 : 534,666.89 = 234,530.83 : x
  2. Step 2: Convert to fraction form
    387,408.41/534,666.89 = 234,530.83/x
  3. Step 3: Cross multiply
    387,408.41x = 534,666.89 × 234,530.83
  4. Step 4: Simplify right side
    387,408.41x = 125,395,869,485.22
  5. Step 5: Solve for x
    x = 125,395,869,485.22/387,408.41
  6. Step 6: Final answer
    x = 323,678.75

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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.