Home / 638,527.59-881,151.21-352,040.31

Finding the Fourth Proportional to 638,527.59, 881,151.21 and 352,040.31

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Solution

The fourth proportional to 638,527.59, 881,151.21 and 352,040.31 is: 485,806.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,527.59 : 881,151.21 = 352,040.31 : x
  2. Step 2: Convert to fraction form
    638,527.59/881,151.21 = 352,040.31/x
  3. Step 3: Cross multiply
    638,527.59x = 881,151.21 × 352,040.31
  4. Step 4: Simplify right side
    638,527.59x = 310,200,745,125.28
  5. Step 5: Solve for x
    x = 310,200,745,125.28/638,527.59
  6. Step 6: Final answer
    x = 485,806.33

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1.5x scale

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.