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Finding the Fourth Proportional to 678,134.56, 933,691.92 and 575,940.64

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Solution

The fourth proportional to 678,134.56, 933,691.92 and 575,940.64 is: 792,985.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,134.56 : 933,691.92 = 575,940.64 : x
  2. Step 2: Convert to fraction form
    678,134.56/933,691.92 = 575,940.64/x
  3. Step 3: Cross multiply
    678,134.56x = 933,691.92 × 575,940.64
  4. Step 4: Simplify right side
    678,134.56x = 537,751,121,967.63
  5. Step 5: Solve for x
    x = 537,751,121,967.63/678,134.56
  6. Step 6: Final answer
    x = 792,985.87

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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.