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Finding the Fourth Proportional to 316,782.66, 437,160.06 and 189,458.25

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Solution

The fourth proportional to 316,782.66, 437,160.06 and 189,458.25 is: 261,452.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,782.66 : 437,160.06 = 189,458.25 : x
  2. Step 2: Convert to fraction form
    316,782.66/437,160.06 = 189,458.25/x
  3. Step 3: Cross multiply
    316,782.66x = 437,160.06 × 189,458.25
  4. Step 4: Simplify right side
    316,782.66x = 82,823,579,937.50
  5. Step 5: Solve for x
    x = 82,823,579,937.50/316,782.66
  6. Step 6: Final answer
    x = 261,452.38

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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.