Home / 528,049.50-791,374.41-439,869.66

Finding the Fourth Proportional to 528,049.50, 791,374.41 and 439,869.66

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Solution

The fourth proportional to 528,049.50, 791,374.41 and 439,869.66 is: 659,221.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,049.50 : 791,374.41 = 439,869.66 : x
  2. Step 2: Convert to fraction form
    528,049.50/791,374.41 = 439,869.66/x
  3. Step 3: Cross multiply
    528,049.50x = 791,374.41 × 439,869.66
  4. Step 4: Simplify right side
    528,049.50x = 348,101,592,659.40
  5. Step 5: Solve for x
    x = 348,101,592,659.40/528,049.50
  6. Step 6: Final answer
    x = 659,221.52

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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.