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Finding the Fourth Proportional to 585,443.46, 807,901.44 and 330,789.18

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Solution

The fourth proportional to 585,443.46, 807,901.44 and 330,789.18 is: 456,483.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,443.46 : 807,901.44 = 330,789.18 : x
  2. Step 2: Convert to fraction form
    585,443.46/807,901.44 = 330,789.18/x
  3. Step 3: Cross multiply
    585,443.46x = 807,901.44 × 330,789.18
  4. Step 4: Simplify right side
    585,443.46x = 267,245,054,858.42
  5. Step 5: Solve for x
    x = 267,245,054,858.42/585,443.46
  6. Step 6: Final answer
    x = 456,483.12

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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.