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Finding the Fourth Proportional to 624,891.48, 862,345.94 and 338,405.01

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Solution

The fourth proportional to 624,891.48, 862,345.94 and 338,405.01 is: 466,996.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,891.48 : 862,345.94 = 338,405.01 : x
  2. Step 2: Convert to fraction form
    624,891.48/862,345.94 = 338,405.01/x
  3. Step 3: Cross multiply
    624,891.48x = 862,345.94 × 338,405.01
  4. Step 4: Simplify right side
    624,891.48x = 291,822,186,449.16
  5. Step 5: Solve for x
    x = 291,822,186,449.16/624,891.48
  6. Step 6: Final answer
    x = 466,996.58

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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.