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Finding the Fourth Proportional to 655,119.69, 904,085.30 and 356,773.60

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Solution

The fourth proportional to 655,119.69, 904,085.30 and 356,773.60 is: 492,358.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,119.69 : 904,085.30 = 356,773.60 : x
  2. Step 2: Convert to fraction form
    655,119.69/904,085.30 = 356,773.60/x
  3. Step 3: Cross multiply
    655,119.69x = 904,085.30 × 356,773.60
  4. Step 4: Simplify right side
    655,119.69x = 322,553,763,071.32
  5. Step 5: Solve for x
    x = 322,553,763,071.32/655,119.69
  6. Step 6: Final answer
    x = 492,358.52

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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.