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Finding the Fourth Proportional to 904,902, 1,356,419.84 and 406,615.92

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Solution

The fourth proportional to 904,902, 1,356,419.84 and 406,615.92 is: 609,504.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,902 : 1,356,419.84 = 406,615.92 : x
  2. Step 2: Convert to fraction form
    904,902/1,356,419.84 = 406,615.92/x
  3. Step 3: Cross multiply
    904,902x = 1,356,419.84 × 406,615.92
  4. Step 4: Simplify right side
    904,902x = 551,541,901,147.85
  5. Step 5: Solve for x
    x = 551,541,901,147.85/904,902
  6. Step 6: Final answer
    x = 609,504.57

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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.