Home / 325,561.59-489,092.85-312,109.83

Finding the Fourth Proportional to 325,561.59, 489,092.85 and 312,109.83

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Solution

The fourth proportional to 325,561.59, 489,092.85 and 312,109.83 is: 468,884.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,561.59 : 489,092.85 = 312,109.83 : x
  2. Step 2: Convert to fraction form
    325,561.59/489,092.85 = 312,109.83/x
  3. Step 3: Cross multiply
    325,561.59x = 489,092.85 × 312,109.83
  4. Step 4: Simplify right side
    325,561.59x = 152,650,686,267.72
  5. Step 5: Solve for x
    x = 152,650,686,267.72/325,561.59
  6. Step 6: Final answer
    x = 468,884.20

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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.