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Finding the Fourth Proportional to 283,653.77, 391,435.45 and 154,596.31

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Solution

The fourth proportional to 283,653.77, 391,435.45 and 154,596.31 is: 213,339.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,653.77 : 391,435.45 = 154,596.31 : x
  2. Step 2: Convert to fraction form
    283,653.77/391,435.45 = 154,596.31/x
  3. Step 3: Cross multiply
    283,653.77x = 391,435.45 × 154,596.31
  4. Step 4: Simplify right side
    283,653.77x = 60,514,474,808.11
  5. Step 5: Solve for x
    x = 60,514,474,808.11/283,653.77
  6. Step 6: Final answer
    x = 213,339.23

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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.