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Finding the Fourth Proportional to 885,892.14, 1,328,696.06 and 317,167.65

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Solution

The fourth proportional to 885,892.14, 1,328,696.06 and 317,167.65 is: 475,700.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,892.14 : 1,328,696.06 = 317,167.65 : x
  2. Step 2: Convert to fraction form
    885,892.14/1,328,696.06 = 317,167.65/x
  3. Step 3: Cross multiply
    885,892.14x = 1,328,696.06 × 317,167.65
  4. Step 4: Simplify right side
    885,892.14x = 421,419,405,328.62
  5. Step 5: Solve for x
    x = 421,419,405,328.62/885,892.14
  6. Step 6: Final answer
    x = 475,700.58

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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.