Home / 511,787.39-768,346.30-393,541.75

Finding the Fourth Proportional to 511,787.39, 768,346.30 and 393,541.75

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Solution

The fourth proportional to 511,787.39, 768,346.30 and 393,541.75 is: 590,824.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,787.39 : 768,346.30 = 393,541.75 : x
  2. Step 2: Convert to fraction form
    511,787.39/768,346.30 = 393,541.75/x
  3. Step 3: Cross multiply
    511,787.39x = 768,346.30 × 393,541.75
  4. Step 4: Simplify right side
    511,787.39x = 302,376,343,666.29
  5. Step 5: Solve for x
    x = 302,376,343,666.29/511,787.39
  6. Step 6: Final answer
    x = 590,824.14

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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.