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Finding the Fourth Proportional to 481,959.64, 723,090.56 and 290,043.51

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Solution

The fourth proportional to 481,959.64, 723,090.56 and 290,043.51 is: 435,156.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,959.64 : 723,090.56 = 290,043.51 : x
  2. Step 2: Convert to fraction form
    481,959.64/723,090.56 = 290,043.51/x
  3. Step 3: Cross multiply
    481,959.64x = 723,090.56 × 290,043.51
  4. Step 4: Simplify right side
    481,959.64x = 209,727,724,070.27
  5. Step 5: Solve for x
    x = 209,727,724,070.27/481,959.64
  6. Step 6: Final answer
    x = 435,156.20

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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.