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Finding the Fourth Proportional to 316,777.66, 437,153.17 and 189,453.25

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Solution

The fourth proportional to 316,777.66, 437,153.17 and 189,453.25 is: 261,445.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,777.66 : 437,153.17 = 189,453.25 : x
  2. Step 2: Convert to fraction form
    316,777.66/437,153.17 = 189,453.25/x
  3. Step 3: Cross multiply
    316,777.66x = 437,153.17 × 189,453.25
  4. Step 4: Simplify right side
    316,777.66x = 82,820,088,804.30
  5. Step 5: Solve for x
    x = 82,820,088,804.30/316,777.66
  6. Step 6: Final answer
    x = 261,445.48

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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.