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Finding the Fourth Proportional to 609,507.85, 841,070.92 and 347,861.87

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Solution

The fourth proportional to 609,507.85, 841,070.92 and 347,861.87 is: 480,020.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,507.85 : 841,070.92 = 347,861.87 : x
  2. Step 2: Convert to fraction form
    609,507.85/841,070.92 = 347,861.87/x
  3. Step 3: Cross multiply
    609,507.85x = 841,070.92 × 347,861.87
  4. Step 4: Simplify right side
    609,507.85x = 292,576,497,958.81
  5. Step 5: Solve for x
    x = 292,576,497,958.81/609,507.85
  6. Step 6: Final answer
    x = 480,020.89

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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.