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Finding the Fourth Proportional to 480,314.88, 720,446.35 and 243,651.41

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Solution

The fourth proportional to 480,314.88, 720,446.35 and 243,651.41 is: 365,463.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,314.88 : 720,446.35 = 243,651.41 : x
  2. Step 2: Convert to fraction form
    480,314.88/720,446.35 = 243,651.41/x
  3. Step 3: Cross multiply
    480,314.88x = 720,446.35 × 243,651.41
  4. Step 4: Simplify right side
    480,314.88x = 175,537,767,954.01
  5. Step 5: Solve for x
    x = 175,537,767,954.01/480,314.88
  6. Step 6: Final answer
    x = 365,463.94

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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.