Home / 389,086.13-536,924.90-216,994.75

Finding the Fourth Proportional to 389,086.13, 536,924.90 and 216,994.75

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Solution

The fourth proportional to 389,086.13, 536,924.90 and 216,994.75 is: 299,444.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,086.13 : 536,924.90 = 216,994.75 : x
  2. Step 2: Convert to fraction form
    389,086.13/536,924.90 = 216,994.75/x
  3. Step 3: Cross multiply
    389,086.13x = 536,924.90 × 216,994.75
  4. Step 4: Simplify right side
    389,086.13x = 116,509,883,644.45
  5. Step 5: Solve for x
    x = 116,509,883,644.45/389,086.13
  6. Step 6: Final answer
    x = 299,444.97

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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.