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Finding the Fourth Proportional to 262,465.46, 393,390.88 and 100,253.16

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Solution

The fourth proportional to 262,465.46, 393,390.88 and 100,253.16 is: 150,262.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,465.46 : 393,390.88 = 100,253.16 : x
  2. Step 2: Convert to fraction form
    262,465.46/393,390.88 = 100,253.16/x
  3. Step 3: Cross multiply
    262,465.46x = 393,390.88 × 100,253.16
  4. Step 4: Simplify right side
    262,465.46x = 39,438,678,835.18
  5. Step 5: Solve for x
    x = 39,438,678,835.18/262,465.46
  6. Step 6: Final answer
    x = 150,262.36

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1.5x scale

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.