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Finding the Fourth Proportional to 506,103.02, 698,423.55 and 276,663.05

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Solution

The fourth proportional to 506,103.02, 698,423.55 and 276,663.05 is: 381,795.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,103.02 : 698,423.55 = 276,663.05 : x
  2. Step 2: Convert to fraction form
    506,103.02/698,423.55 = 276,663.05/x
  3. Step 3: Cross multiply
    506,103.02x = 698,423.55 × 276,663.05
  4. Step 4: Simplify right side
    506,103.02x = 193,227,986,042.71
  5. Step 5: Solve for x
    x = 193,227,986,042.71/506,103.02
  6. Step 6: Final answer
    x = 381,795.76

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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.