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Finding the Fourth Proportional to 481,959.14, 723,089.81 and 290,043.01

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Solution

The fourth proportional to 481,959.14, 723,089.81 and 290,043.01 is: 435,155.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,959.14 : 723,089.81 = 290,043.01 : x
  2. Step 2: Convert to fraction form
    481,959.14/723,089.81 = 290,043.01/x
  3. Step 3: Cross multiply
    481,959.14x = 723,089.81 × 290,043.01
  4. Step 4: Simplify right side
    481,959.14x = 209,727,144,992.73
  5. Step 5: Solve for x
    x = 209,727,144,992.73/481,959.14
  6. Step 6: Final answer
    x = 435,155.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.