Home / 306,056.20-459,084.30-257,067.40

Finding the Fourth Proportional to 306,056.20, 459,084.30 and 257,067.40

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Solution

The fourth proportional to 306,056.20, 459,084.30 and 257,067.40 is: 385,601.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,056.20 : 459,084.30 = 257,067.40 : x
  2. Step 2: Convert to fraction form
    306,056.20/459,084.30 = 257,067.40/x
  3. Step 3: Cross multiply
    306,056.20x = 459,084.30 × 257,067.40
  4. Step 4: Simplify right side
    306,056.20x = 118,015,607,381.82
  5. Step 5: Solve for x
    x = 118,015,607,381.82/306,056.20
  6. Step 6: Final answer
    x = 385,601.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.