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Finding the Fourth Proportional to 609,572.11, 841,218.20 and 351,443.94

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Solution

The fourth proportional to 609,572.11, 841,218.20 and 351,443.94 is: 484,997.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,572.11 : 841,218.20 = 351,443.94 : x
  2. Step 2: Convert to fraction form
    609,572.11/841,218.20 = 351,443.94/x
  3. Step 3: Cross multiply
    609,572.11x = 841,218.20 × 351,443.94
  4. Step 4: Simplify right side
    609,572.11x = 295,641,038,607.71
  5. Step 5: Solve for x
    x = 295,641,038,607.71/609,572.11
  6. Step 6: Final answer
    x = 484,997.65

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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.