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Finding the Fourth Proportional to 506,053.76, 698,370.35 and 276,606

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Solution

The fourth proportional to 506,053.76, 698,370.35 and 276,606 is: 381,725.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,053.76 : 698,370.35 = 276,606 : x
  2. Step 2: Convert to fraction form
    506,053.76/698,370.35 = 276,606/x
  3. Step 3: Cross multiply
    506,053.76x = 698,370.35 × 276,606
  4. Step 4: Simplify right side
    506,053.76x = 193,173,427,649.07
  5. Step 5: Solve for x
    x = 193,173,427,649.07/506,053.76
  6. Step 6: Final answer
    x = 381,725.11

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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.