Home / 677,631.47-934,974.62-405,596.01

Finding the Fourth Proportional to 677,631.47, 934,974.62 and 405,596.01

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Solution

The fourth proportional to 677,631.47, 934,974.62 and 405,596.01 is: 559,628.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,631.47 : 934,974.62 = 405,596.01 : x
  2. Step 2: Convert to fraction form
    677,631.47/934,974.62 = 405,596.01/x
  3. Step 3: Cross multiply
    677,631.47x = 934,974.62 × 405,596.01
  4. Step 4: Simplify right side
    677,631.47x = 379,221,974,203.93
  5. Step 5: Solve for x
    x = 379,221,974,203.93/677,631.47
  6. Step 6: Final answer
    x = 559,628.63

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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.