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Finding the Fourth Proportional to 519,736.90, 779,605.36 and 125,752.90

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Solution

The fourth proportional to 519,736.90, 779,605.36 and 125,752.90 is: 188,629.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,736.90 : 779,605.36 = 125,752.90 : x
  2. Step 2: Convert to fraction form
    519,736.90/779,605.36 = 125,752.90/x
  3. Step 3: Cross multiply
    519,736.90x = 779,605.36 × 125,752.90
  4. Step 4: Simplify right side
    519,736.90x = 98,037,634,875.54
  5. Step 5: Solve for x
    x = 98,037,634,875.54/519,736.90
  6. Step 6: Final answer
    x = 188,629.35

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Similar ratio
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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.