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Finding the Fourth Proportional to 449,473.62, 620,246.65 and 245,483.93

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Solution

The fourth proportional to 449,473.62, 620,246.65 and 245,483.93 is: 338,753.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,473.62 : 620,246.65 = 245,483.93 : x
  2. Step 2: Convert to fraction form
    449,473.62/620,246.65 = 245,483.93/x
  3. Step 3: Cross multiply
    449,473.62x = 620,246.65 × 245,483.93
  4. Step 4: Simplify right side
    449,473.62x = 152,260,583,047.01
  5. Step 5: Solve for x
    x = 152,260,583,047.01/449,473.62
  6. Step 6: Final answer
    x = 338,753.10

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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.