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Finding the Fourth Proportional to 619,548.88, 929,420.56 and 264,564.76

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Solution

The fourth proportional to 619,548.88, 929,420.56 and 264,564.76 is: 396,888.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,548.88 : 929,420.56 = 264,564.76 : x
  2. Step 2: Convert to fraction form
    619,548.88/929,420.56 = 264,564.76/x
  3. Step 3: Cross multiply
    619,548.88x = 929,420.56 × 264,564.76
  4. Step 4: Simplify right side
    619,548.88x = 245,891,927,395.47
  5. Step 5: Solve for x
    x = 245,891,927,395.47/619,548.88
  6. Step 6: Final answer
    x = 396,888.66

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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.