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Finding the Fourth Proportional to 583,118.70, 803,504.79 and 447,145.62

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Solution

The fourth proportional to 583,118.70, 803,504.79 and 447,145.62 is: 616,141.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,118.70 : 803,504.79 = 447,145.62 : x
  2. Step 2: Convert to fraction form
    583,118.70/803,504.79 = 447,145.62/x
  3. Step 3: Cross multiply
    583,118.70x = 803,504.79 × 447,145.62
  4. Step 4: Simplify right side
    583,118.70x = 359,283,647,497.52
  5. Step 5: Solve for x
    x = 359,283,647,497.52/583,118.70
  6. Step 6: Final answer
    x = 616,141.53

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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.