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Finding the Fourth Proportional to 456,862.28, 685,182.38 and 190,625.00

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Solution

The fourth proportional to 456,862.28, 685,182.38 and 190,625.00 is: 285,891.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,862.28 : 685,182.38 = 190,625.00 : x
  2. Step 2: Convert to fraction form
    456,862.28/685,182.38 = 190,625.00/x
  3. Step 3: Cross multiply
    456,862.28x = 685,182.38 × 190,625.00
  4. Step 4: Simplify right side
    456,862.28x = 130,612,886,808.46
  5. Step 5: Solve for x
    x = 130,612,886,808.46/456,862.28
  6. Step 6: Final answer
    x = 285,891.16

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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.