Home / 387,298.04-534,408.48-242,086.64

Finding the Fourth Proportional to 387,298.04, 534,408.48 and 242,086.64

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Solution

The fourth proportional to 387,298.04, 534,408.48 and 242,086.64 is: 334,040.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,298.04 : 534,408.48 = 242,086.64 : x
  2. Step 2: Convert to fraction form
    387,298.04/534,408.48 = 242,086.64/x
  3. Step 3: Cross multiply
    387,298.04x = 534,408.48 × 242,086.64
  4. Step 4: Simplify right side
    387,298.04x = 129,373,153,310.71
  5. Step 5: Solve for x
    x = 129,373,153,310.71/387,298.04
  6. Step 6: Final answer
    x = 334,040.30

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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.