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Finding the Fourth Proportional to 497,334.67, 686,312.60 and 276,585.50

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Solution

The fourth proportional to 497,334.67, 686,312.60 and 276,585.50 is: 381,682.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,334.67 : 686,312.60 = 276,585.50 : x
  2. Step 2: Convert to fraction form
    497,334.67/686,312.60 = 276,585.50/x
  3. Step 3: Cross multiply
    497,334.67x = 686,312.60 × 276,585.50
  4. Step 4: Simplify right side
    497,334.67x = 189,824,113,960.15
  5. Step 5: Solve for x
    x = 189,824,113,960.15/497,334.67
  6. Step 6: Final answer
    x = 381,682.85

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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.