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Finding the Fourth Proportional to 1,314,899.92, 1,972,349.88 and 317,627.92

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Solution

The fourth proportional to 1,314,899.92, 1,972,349.88 and 317,627.92 is: 476,441.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,899.92 : 1,972,349.88 = 317,627.92 : x
  2. Step 2: Convert to fraction form
    1,314,899.92/1,972,349.88 = 317,627.92/x
  3. Step 3: Cross multiply
    1,314,899.92x = 1,972,349.88 × 317,627.92
  4. Step 4: Simplify right side
    1,314,899.92x = 626,473,389,896.65
  5. Step 5: Solve for x
    x = 626,473,389,896.65/1,314,899.92
  6. Step 6: Final answer
    x = 476,441.88

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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.