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Finding the Fourth Proportional to 357,913.44, 535,701.66 and 263,118.48

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Solution

The fourth proportional to 357,913.44, 535,701.66 and 263,118.48 is: 393,818.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,913.44 : 535,701.66 = 263,118.48 : x
  2. Step 2: Convert to fraction form
    357,913.44/535,701.66 = 263,118.48/x
  3. Step 3: Cross multiply
    357,913.44x = 535,701.66 × 263,118.48
  4. Step 4: Simplify right side
    357,913.44x = 140,953,006,512.68
  5. Step 5: Solve for x
    x = 140,953,006,512.68/357,913.44
  6. Step 6: Final answer
    x = 393,818.70

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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.