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Finding the Fourth Proportional to 609,986.68, 841,781.65 and 338,095.45

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Solution

The fourth proportional to 609,986.68, 841,781.65 and 338,095.45 is: 466,571.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,986.68 : 841,781.65 = 338,095.45 : x
  2. Step 2: Convert to fraction form
    609,986.68/841,781.65 = 338,095.45/x
  3. Step 3: Cross multiply
    609,986.68x = 841,781.65 × 338,095.45
  4. Step 4: Simplify right side
    609,986.68x = 284,602,546,599.41
  5. Step 5: Solve for x
    x = 284,602,546,599.41/609,986.68
  6. Step 6: Final answer
    x = 466,571.74

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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.