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Finding the Fourth Proportional to 626,502.83, 864,576.45 and 340,023.24

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Solution

The fourth proportional to 626,502.83, 864,576.45 and 340,023.24 is: 469,233.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,502.83 : 864,576.45 = 340,023.24 : x
  2. Step 2: Convert to fraction form
    626,502.83/864,576.45 = 340,023.24/x
  3. Step 3: Cross multiply
    626,502.83x = 864,576.45 × 340,023.24
  4. Step 4: Simplify right side
    626,502.83x = 293,976,085,756.70
  5. Step 5: Solve for x
    x = 293,976,085,756.70/626,502.83
  6. Step 6: Final answer
    x = 469,233.46

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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.