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Finding the Fourth Proportional to 545,357.11, 818,152.93 and 271,952.30

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Solution

The fourth proportional to 545,357.11, 818,152.93 and 271,952.30 is: 407,986.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,357.11 : 818,152.93 = 271,952.30 : x
  2. Step 2: Convert to fraction form
    545,357.11/818,152.93 = 271,952.30/x
  3. Step 3: Cross multiply
    545,357.11x = 818,152.93 × 271,952.30
  4. Step 4: Simplify right side
    545,357.11x = 222,498,567,314.42
  5. Step 5: Solve for x
    x = 222,498,567,314.42/545,357.11
  6. Step 6: Final answer
    x = 407,986.92

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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.