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Finding the Fourth Proportional to 633,864.96, 874,229.76 and 538,686.72

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Solution

The fourth proportional to 633,864.96, 874,229.76 and 538,686.72 is: 742,959.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,864.96 : 874,229.76 = 538,686.72 : x
  2. Step 2: Convert to fraction form
    633,864.96/874,229.76 = 538,686.72/x
  3. Step 3: Cross multiply
    633,864.96x = 874,229.76 × 538,686.72
  4. Step 4: Simplify right side
    633,864.96x = 470,935,961,940.79
  5. Step 5: Solve for x
    x = 470,935,961,940.79/633,864.96
  6. Step 6: Final answer
    x = 742,959.45

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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.