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Finding the Fourth Proportional to 574,573.61, 861,261.68 and 321,483.04

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Solution

The fourth proportional to 574,573.61, 861,261.68 and 321,483.04 is: 481,889.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,573.61 : 861,261.68 = 321,483.04 : x
  2. Step 2: Convert to fraction form
    574,573.61/861,261.68 = 321,483.04/x
  3. Step 3: Cross multiply
    574,573.61x = 861,261.68 × 321,483.04
  4. Step 4: Simplify right side
    574,573.61x = 276,881,021,772.46
  5. Step 5: Solve for x
    x = 276,881,021,772.46/574,573.61
  6. Step 6: Final answer
    x = 481,889.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.