Home / 526,787.84-726,961.68-285,065.12

Finding the Fourth Proportional to 526,787.84, 726,961.68 and 285,065.12

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Solution

The fourth proportional to 526,787.84, 726,961.68 and 285,065.12 is: 393,386.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,787.84 : 726,961.68 = 285,065.12 : x
  2. Step 2: Convert to fraction form
    526,787.84/726,961.68 = 285,065.12/x
  3. Step 3: Cross multiply
    526,787.84x = 726,961.68 × 285,065.12
  4. Step 4: Simplify right side
    526,787.84x = 207,231,418,544.60
  5. Step 5: Solve for x
    x = 207,231,418,544.60/526,787.84
  6. Step 6: Final answer
    x = 393,386.87

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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.