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Finding the Fourth Proportional to 483,460.04, 721,641.20 and 447,833.81

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Solution

The fourth proportional to 483,460.04, 721,641.20 and 447,833.81 is: 668,463.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,460.04 : 721,641.20 = 447,833.81 : x
  2. Step 2: Convert to fraction form
    483,460.04/721,641.20 = 447,833.81/x
  3. Step 3: Cross multiply
    483,460.04x = 721,641.20 × 447,833.81
  4. Step 4: Simplify right side
    483,460.04x = 323,175,330,132.97
  5. Step 5: Solve for x
    x = 323,175,330,132.97/483,460.04
  6. Step 6: Final answer
    x = 668,463.37

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.