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Finding the Fourth Proportional to 506,392.47, 698,793.30 and 276,904.26

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Solution

The fourth proportional to 506,392.47, 698,793.30 and 276,904.26 is: 382,112.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,392.47 : 698,793.30 = 276,904.26 : x
  2. Step 2: Convert to fraction form
    506,392.47/698,793.30 = 276,904.26/x
  3. Step 3: Cross multiply
    506,392.47x = 698,793.30 × 276,904.26
  4. Step 4: Simplify right side
    506,392.47x = 193,498,841,629.46
  5. Step 5: Solve for x
    x = 193,498,841,629.46/506,392.47
  6. Step 6: Final answer
    x = 382,112.40

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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.