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Finding the Fourth Proportional to 265,184.24, 397,775.88 and 78,326.96

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Solution

The fourth proportional to 265,184.24, 397,775.88 and 78,326.96 is: 117,490.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,184.24 : 397,775.88 = 78,326.96 : x
  2. Step 2: Convert to fraction form
    265,184.24/397,775.88 = 78,326.96/x
  3. Step 3: Cross multiply
    265,184.24x = 397,775.88 × 78,326.96
  4. Step 4: Simplify right side
    265,184.24x = 31,156,575,441.72
  5. Step 5: Solve for x
    x = 31,156,575,441.72/265,184.24
  6. Step 6: Final answer
    x = 117,490.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.