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Finding the Fourth Proportional to 655,242.39, 904,513.50 and 440,507.00

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Solution

The fourth proportional to 655,242.39, 904,513.50 and 440,507.00 is: 608,087.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,242.39 : 904,513.50 = 440,507.00 : x
  2. Step 2: Convert to fraction form
    655,242.39/904,513.50 = 440,507.00/x
  3. Step 3: Cross multiply
    655,242.39x = 904,513.50 × 440,507.00
  4. Step 4: Simplify right side
    655,242.39x = 398,444,530,605.78
  5. Step 5: Solve for x
    x = 398,444,530,605.78/655,242.39
  6. Step 6: Final answer
    x = 608,087.23

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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.