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Finding the Fourth Proportional to 618,594.02, 927,227.64 and 405,281.34

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Solution

The fourth proportional to 618,594.02, 927,227.64 and 405,281.34 is: 607,487.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,594.02 : 927,227.64 = 405,281.34 : x
  2. Step 2: Convert to fraction form
    618,594.02/927,227.64 = 405,281.34/x
  3. Step 3: Cross multiply
    618,594.02x = 927,227.64 × 405,281.34
  4. Step 4: Simplify right side
    618,594.02x = 375,788,060,424.24
  5. Step 5: Solve for x
    x = 375,788,060,424.24/618,594.02
  6. Step 6: Final answer
    x = 607,487.38

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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.