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Finding the Fourth Proportional to 585,287.12, 807,696.36 and 317,015.12

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Solution

The fourth proportional to 585,287.12, 807,696.36 and 317,015.12 is: 437,480.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,287.12 : 807,696.36 = 317,015.12 : x
  2. Step 2: Convert to fraction form
    585,287.12/807,696.36 = 317,015.12/x
  3. Step 3: Cross multiply
    585,287.12x = 807,696.36 × 317,015.12
  4. Step 4: Simplify right side
    585,287.12x = 256,051,958,488.96
  5. Step 5: Solve for x
    x = 256,051,958,488.96/585,287.12
  6. Step 6: Final answer
    x = 437,480.94

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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.