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Finding the Fourth Proportional to 283,626.65, 391,399.65 and 154,566.24

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Solution

The fourth proportional to 283,626.65, 391,399.65 and 154,566.24 is: 213,298.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,626.65 : 391,399.65 = 154,566.24 : x
  2. Step 2: Convert to fraction form
    283,626.65/391,399.65 = 154,566.24/x
  3. Step 3: Cross multiply
    283,626.65x = 391,399.65 × 154,566.24
  4. Step 4: Simplify right side
    283,626.65x = 60,497,172,237.82
  5. Step 5: Solve for x
    x = 60,497,172,237.82/283,626.65
  6. Step 6: Final answer
    x = 213,298.62

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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.