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Finding the Fourth Proportional to 283,797.53, 391,643.24 and 156,477.65

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Solution

The fourth proportional to 283,797.53, 391,643.24 and 156,477.65 is: 215,940.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,797.53 : 391,643.24 = 156,477.65 : x
  2. Step 2: Convert to fraction form
    283,797.53/391,643.24 = 156,477.65/x
  3. Step 3: Cross multiply
    283,797.53x = 391,643.24 × 156,477.65
  4. Step 4: Simplify right side
    283,797.53x = 61,283,413,833.59
  5. Step 5: Solve for x
    x = 61,283,413,833.59/283,797.53
  6. Step 6: Final answer
    x = 215,940.62

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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.