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Finding the Fourth Proportional to 561,525.21, 842,681.48 and 324,541.89

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Solution

The fourth proportional to 561,525.21, 842,681.48 and 324,541.89 is: 487,040.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,525.21 : 842,681.48 = 324,541.89 : x
  2. Step 2: Convert to fraction form
    561,525.21/842,681.48 = 324,541.89/x
  3. Step 3: Cross multiply
    561,525.21x = 842,681.48 × 324,541.89
  4. Step 4: Simplify right side
    561,525.21x = 273,485,438,564.49
  5. Step 5: Solve for x
    x = 273,485,438,564.49/561,525.21
  6. Step 6: Final answer
    x = 487,040.36

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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.