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Finding the Fourth Proportional to 506,140.56, 698,452.20 and 276,693.48

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Solution

The fourth proportional to 506,140.56, 698,452.20 and 276,693.48 is: 381,825.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,140.56 : 698,452.20 = 276,693.48 : x
  2. Step 2: Convert to fraction form
    506,140.56/698,452.20 = 276,693.48/x
  3. Step 3: Cross multiply
    506,140.56x = 698,452.20 × 276,693.48
  4. Step 4: Simplify right side
    506,140.56x = 193,257,169,831.66
  5. Step 5: Solve for x
    x = 193,257,169,831.66/506,140.56
  6. Step 6: Final answer
    x = 381,825.10

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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.