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Finding the Fourth Proportional to 653,634.86, 980,231.78 and 248,730.93

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Solution

The fourth proportional to 653,634.86, 980,231.78 and 248,730.93 is: 373,012.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,634.86 : 980,231.78 = 248,730.93 : x
  2. Step 2: Convert to fraction form
    653,634.86/980,231.78 = 248,730.93/x
  3. Step 3: Cross multiply
    653,634.86x = 980,231.78 × 248,730.93
  4. Step 4: Simplify right side
    653,634.86x = 243,813,962,876.78
  5. Step 5: Solve for x
    x = 243,813,962,876.78/653,634.86
  6. Step 6: Final answer
    x = 373,012.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.