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Finding the Fourth Proportional to 544,978.40, 751,644.16 and 354,053.30

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Solution

The fourth proportional to 544,978.40, 751,644.16 and 354,053.30 is: 488,316.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,978.40 : 751,644.16 = 354,053.30 : x
  2. Step 2: Convert to fraction form
    544,978.40/751,644.16 = 354,053.30/x
  3. Step 3: Cross multiply
    544,978.40x = 751,644.16 × 354,053.30
  4. Step 4: Simplify right side
    544,978.40x = 266,122,090,630.37
  5. Step 5: Solve for x
    x = 266,122,090,630.37/544,978.40
  6. Step 6: Final answer
    x = 488,316.77

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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.