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Finding the Fourth Proportional to 609,100.61, 914,549.09 and 339,755.00

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Solution

The fourth proportional to 609,100.61, 914,549.09 and 339,755.00 is: 510,133.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,100.61 : 914,549.09 = 339,755.00 : x
  2. Step 2: Convert to fraction form
    609,100.61/914,549.09 = 339,755.00/x
  3. Step 3: Cross multiply
    609,100.61x = 914,549.09 × 339,755.00
  4. Step 4: Simplify right side
    609,100.61x = 310,722,629,208.71
  5. Step 5: Solve for x
    x = 310,722,629,208.71/609,100.61
  6. Step 6: Final answer
    x = 510,133.50

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1.5x scale

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.