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Finding the Fourth Proportional to 609,693.45, 841,516.92 and 405,752.97

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Solution

The fourth proportional to 609,693.45, 841,516.92 and 405,752.97 is: 560,032.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,693.45 : 841,516.92 = 405,752.97 : x
  2. Step 2: Convert to fraction form
    609,693.45/841,516.92 = 405,752.97/x
  3. Step 3: Cross multiply
    609,693.45x = 841,516.92 × 405,752.97
  4. Step 4: Simplify right side
    609,693.45x = 341,447,989,595.25
  5. Step 5: Solve for x
    x = 341,447,989,595.25/609,693.45
  6. Step 6: Final answer
    x = 560,032.24

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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.