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Finding the Fourth Proportional to 357,957.21, 535,767.50 and 263,162.30

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Solution

The fourth proportional to 357,957.21, 535,767.50 and 263,162.30 is: 393,884.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,957.21 : 535,767.50 = 263,162.30 : x
  2. Step 2: Convert to fraction form
    357,957.21/535,767.50 = 263,162.30/x
  3. Step 3: Cross multiply
    357,957.21x = 535,767.50 × 263,162.30
  4. Step 4: Simplify right side
    357,957.21x = 140,993,803,570.60
  5. Step 5: Solve for x
    x = 140,993,803,570.60/357,957.21
  6. Step 6: Final answer
    x = 393,884.52

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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.