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Finding the Fourth Proportional to 325,038.59, 487,609.83 and 100,346.21

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Solution

The fourth proportional to 325,038.59, 487,609.83 and 100,346.21 is: 150,535.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,038.59 : 487,609.83 = 100,346.21 : x
  2. Step 2: Convert to fraction form
    325,038.59/487,609.83 = 100,346.21/x
  3. Step 3: Cross multiply
    325,038.59x = 487,609.83 × 100,346.21
  4. Step 4: Simplify right side
    325,038.59x = 48,929,795,961.20
  5. Step 5: Solve for x
    x = 48,929,795,961.20/325,038.59
  6. Step 6: Final answer
    x = 150,535.35

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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.