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Finding the Fourth Proportional to 368,907.68, 552,967.32 and 263,406.80

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Solution

The fourth proportional to 368,907.68, 552,967.32 and 263,406.80 is: 394,828.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,907.68 : 552,967.32 = 263,406.80 : x
  2. Step 2: Convert to fraction form
    368,907.68/552,967.32 = 263,406.80/x
  3. Step 3: Cross multiply
    368,907.68x = 552,967.32 × 263,406.80
  4. Step 4: Simplify right side
    368,907.68x = 145,655,352,265.78
  5. Step 5: Solve for x
    x = 145,655,352,265.78/368,907.68
  6. Step 6: Final answer
    x = 394,828.73

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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.