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Finding the Fourth Proportional to 518,593, 777,889.50 and 124,609

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Solution

The fourth proportional to 518,593, 777,889.50 and 124,609 is: 186,913.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,593 : 777,889.50 = 124,609 : x
  2. Step 2: Convert to fraction form
    518,593/777,889.50 = 124,609/x
  3. Step 3: Cross multiply
    518,593x = 777,889.50 × 124,609
  4. Step 4: Simplify right side
    518,593x = 96,932,032,705.50
  5. Step 5: Solve for x
    x = 96,932,032,705.50/518,593
  6. Step 6: Final answer
    x = 186,913.50

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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.