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Finding the Fourth Proportional to 519,336.98, 779,005.47 and 125,352.98

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Solution

The fourth proportional to 519,336.98, 779,005.47 and 125,352.98 is: 188,029.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,336.98 : 779,005.47 = 125,352.98 : x
  2. Step 2: Convert to fraction form
    519,336.98/779,005.47 = 125,352.98/x
  3. Step 3: Cross multiply
    519,336.98x = 779,005.47 × 125,352.98
  4. Step 4: Simplify right side
    519,336.98x = 97,650,657,100.80
  5. Step 5: Solve for x
    x = 97,650,657,100.80/519,336.98
  6. Step 6: Final answer
    x = 188,029.47

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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.