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Finding the Fourth Proportional to 291,658.08, 439,062.78 and 262,329.65

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Solution

The fourth proportional to 291,658.08, 439,062.78 and 262,329.65 is: 394,911.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,658.08 : 439,062.78 = 262,329.65 : x
  2. Step 2: Convert to fraction form
    291,658.08/439,062.78 = 262,329.65/x
  3. Step 3: Cross multiply
    291,658.08x = 439,062.78 × 262,329.65
  4. Step 4: Simplify right side
    291,658.08x = 115,179,183,210.11
  5. Step 5: Solve for x
    x = 115,179,183,210.11/291,658.08
  6. Step 6: Final answer
    x = 394,911.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.