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Finding the Fourth Proportional to 723,881.94, 998,796.38 and 417,891.89

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Solution

The fourth proportional to 723,881.94, 998,796.38 and 417,891.89 is: 576,598.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,881.94 : 998,796.38 = 417,891.89 : x
  2. Step 2: Convert to fraction form
    723,881.94/998,796.38 = 417,891.89/x
  3. Step 3: Cross multiply
    723,881.94x = 998,796.38 × 417,891.89
  4. Step 4: Simplify right side
    723,881.94x = 417,388,899,879.92
  5. Step 5: Solve for x
    x = 417,388,899,879.92/723,881.94
  6. Step 6: Final answer
    x = 576,598.03

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1.5x scale

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.