Home / 391,116.15-586,561.23-177,765.21

Finding the Fourth Proportional to 391,116.15, 586,561.23 and 177,765.21

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Solution

The fourth proportional to 391,116.15, 586,561.23 and 177,765.21 is: 266,596.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,116.15 : 586,561.23 = 177,765.21 : x
  2. Step 2: Convert to fraction form
    391,116.15/586,561.23 = 177,765.21/x
  3. Step 3: Cross multiply
    391,116.15x = 586,561.23 × 177,765.21
  4. Step 4: Simplify right side
    391,116.15x = 104,270,180,228.81
  5. Step 5: Solve for x
    x = 104,270,180,228.81/391,116.15
  6. Step 6: Final answer
    x = 266,596.46

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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.