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Finding the Fourth Proportional to 356,465.16, 491,921.64 and 195,330.24

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Solution

The fourth proportional to 356,465.16, 491,921.64 and 195,330.24 is: 269,555.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,465.16 : 491,921.64 = 195,330.24 : x
  2. Step 2: Convert to fraction form
    356,465.16/491,921.64 = 195,330.24/x
  3. Step 3: Cross multiply
    356,465.16x = 491,921.64 × 195,330.24
  4. Step 4: Simplify right side
    356,465.16x = 96,087,172,002.39
  5. Step 5: Solve for x
    x = 96,087,172,002.39/356,465.16
  6. Step 6: Final answer
    x = 269,555.58

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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.