Home / 428,685.23-591,531.23-235,041.98

Finding the Fourth Proportional to 428,685.23, 591,531.23 and 235,041.98

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Solution

The fourth proportional to 428,685.23, 591,531.23 and 235,041.98 is: 324,328.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,685.23 : 591,531.23 = 235,041.98 : x
  2. Step 2: Convert to fraction form
    428,685.23/591,531.23 = 235,041.98/x
  3. Step 3: Cross multiply
    428,685.23x = 591,531.23 × 235,041.98
  4. Step 4: Simplify right side
    428,685.23x = 139,034,667,398.17
  5. Step 5: Solve for x
    x = 139,034,667,398.17/428,685.23
  6. Step 6: Final answer
    x = 324,328.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.