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Finding the Fourth Proportional to 611,955.79, 844,227.28 and 407,807.84

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Solution

The fourth proportional to 611,955.79, 844,227.28 and 407,807.84 is: 562,593.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,955.79 : 844,227.28 = 407,807.84 : x
  2. Step 2: Convert to fraction form
    611,955.79/844,227.28 = 407,807.84/x
  3. Step 3: Cross multiply
    611,955.79x = 844,227.28 × 407,807.84
  4. Step 4: Simplify right side
    611,955.79x = 344,282,503,525.88
  5. Step 5: Solve for x
    x = 344,282,503,525.88/611,955.79
  6. Step 6: Final answer
    x = 562,593.75

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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.