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Finding the Fourth Proportional to 609,914.97, 841,406.66 and 368,120.25

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Solution

The fourth proportional to 609,914.97, 841,406.66 and 368,120.25 is: 507,839.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,914.97 : 841,406.66 = 368,120.25 : x
  2. Step 2: Convert to fraction form
    609,914.97/841,406.66 = 368,120.25/x
  3. Step 3: Cross multiply
    609,914.97x = 841,406.66 × 368,120.25
  4. Step 4: Simplify right side
    609,914.97x = 309,738,834,796.67
  5. Step 5: Solve for x
    x = 309,738,834,796.67/609,914.97
  6. Step 6: Final answer
    x = 507,839.37

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1.5x scale

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.