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Finding the Fourth Proportional to 573,789.09, 791,817.92 and 315,650.96

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Solution

The fourth proportional to 573,789.09, 791,817.92 and 315,650.96 is: 435,592.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,789.09 : 791,817.92 = 315,650.96 : x
  2. Step 2: Convert to fraction form
    573,789.09/791,817.92 = 315,650.96/x
  3. Step 3: Cross multiply
    573,789.09x = 791,817.92 × 315,650.96
  4. Step 4: Simplify right side
    573,789.09x = 249,938,081,055.86
  5. Step 5: Solve for x
    x = 249,938,081,055.86/573,789.09
  6. Step 6: Final answer
    x = 435,592.25

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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.