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Finding the Fourth Proportional to 291,656.58, 439,060.52 and 262,328.15

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Solution

The fourth proportional to 291,656.58, 439,060.52 and 262,328.15 is: 394,909.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,656.58 : 439,060.52 = 262,328.15 : x
  2. Step 2: Convert to fraction form
    291,656.58/439,060.52 = 262,328.15/x
  3. Step 3: Cross multiply
    291,656.58x = 439,060.52 × 262,328.15
  4. Step 4: Simplify right side
    291,656.58x = 115,177,930,442.70
  5. Step 5: Solve for x
    x = 115,177,930,442.70/291,656.58
  6. Step 6: Final answer
    x = 394,909.42

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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.