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Finding the Fourth Proportional to 574,241.81, 792,440.21 and 319,587.53

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Solution

The fourth proportional to 574,241.81, 792,440.21 and 319,587.53 is: 441,023.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,241.81 : 792,440.21 = 319,587.53 : x
  2. Step 2: Convert to fraction form
    574,241.81/792,440.21 = 319,587.53/x
  3. Step 3: Cross multiply
    574,241.81x = 792,440.21 × 319,587.53
  4. Step 4: Simplify right side
    574,241.81x = 253,254,006,223.35
  5. Step 5: Solve for x
    x = 253,254,006,223.35/574,241.81
  6. Step 6: Final answer
    x = 441,023.28

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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.