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Finding the Fourth Proportional to 480,858.18, 663,526.45 and 276,975.42

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Solution

The fourth proportional to 480,858.18, 663,526.45 and 276,975.42 is: 382,192.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,858.18 : 663,526.45 = 276,975.42 : x
  2. Step 2: Convert to fraction form
    480,858.18/663,526.45 = 276,975.42/x
  3. Step 3: Cross multiply
    480,858.18x = 663,526.45 × 276,975.42
  4. Step 4: Simplify right side
    480,858.18x = 183,780,517,169.86
  5. Step 5: Solve for x
    x = 183,780,517,169.86/480,858.18
  6. Step 6: Final answer
    x = 382,192.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.