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Finding the Fourth Proportional to 577,539.93, 796,978.85 and 319,419.25

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Solution

The fourth proportional to 577,539.93, 796,978.85 and 319,419.25 is: 440,784.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,539.93 : 796,978.85 = 319,419.25 : x
  2. Step 2: Convert to fraction form
    577,539.93/796,978.85 = 319,419.25/x
  3. Step 3: Cross multiply
    577,539.93x = 796,978.85 × 319,419.25
  4. Step 4: Simplify right side
    577,539.93x = 254,570,386,532.86
  5. Step 5: Solve for x
    x = 254,570,386,532.86/577,539.93
  6. Step 6: Final answer
    x = 440,784.05

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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.