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Finding the Fourth Proportional to 655,242.26, 904,513.33 and 440,506.88

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Solution

The fourth proportional to 655,242.26, 904,513.33 and 440,506.88 is: 608,087.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,242.26 : 904,513.33 = 440,506.88 : x
  2. Step 2: Convert to fraction form
    655,242.26/904,513.33 = 440,506.88/x
  3. Step 3: Cross multiply
    655,242.26x = 904,513.33 × 440,506.88
  4. Step 4: Simplify right side
    655,242.26x = 398,444,344,916.71
  5. Step 5: Solve for x
    x = 398,444,344,916.71/655,242.26
  6. Step 6: Final answer
    x = 608,087.07

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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.