Home / 638,576.21-881,190.14-352,090.14

Finding the Fourth Proportional to 638,576.21, 881,190.14 and 352,090.14

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Solution

The fourth proportional to 638,576.21, 881,190.14 and 352,090.14 is: 485,859.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,576.21 : 881,190.14 = 352,090.14 : x
  2. Step 2: Convert to fraction form
    638,576.21/881,190.14 = 352,090.14/x
  3. Step 3: Cross multiply
    638,576.21x = 881,190.14 × 352,090.14
  4. Step 4: Simplify right side
    638,576.21x = 310,258,361,631.51
  5. Step 5: Solve for x
    x = 310,258,361,631.51/638,576.21
  6. Step 6: Final answer
    x = 485,859.57

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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.