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Finding the Fourth Proportional to 319,605.80, 441,080.90 and 183,687.17

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Solution

The fourth proportional to 319,605.80, 441,080.90 and 183,687.17 is: 253,502.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,605.80 : 441,080.90 = 183,687.17 : x
  2. Step 2: Convert to fraction form
    319,605.80/441,080.90 = 183,687.17/x
  3. Step 3: Cross multiply
    319,605.80x = 441,080.90 × 183,687.17
  4. Step 4: Simplify right side
    319,605.80x = 81,020,899,138.21
  5. Step 5: Solve for x
    x = 81,020,899,138.21/319,605.80
  6. Step 6: Final answer
    x = 253,502.60

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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.