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Finding the Fourth Proportional to 622,851.21, 934,276.65 and 356,423.39

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Solution

The fourth proportional to 622,851.21, 934,276.65 and 356,423.39 is: 534,634.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,851.21 : 934,276.65 = 356,423.39 : x
  2. Step 2: Convert to fraction form
    622,851.21/934,276.65 = 356,423.39/x
  3. Step 3: Cross multiply
    622,851.21x = 934,276.65 × 356,423.39
  4. Step 4: Simplify right side
    622,851.21x = 332,998,046,119.46
  5. Step 5: Solve for x
    x = 332,998,046,119.46/622,851.21
  6. Step 6: Final answer
    x = 534,634.98

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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.