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Finding the Fourth Proportional to 624,891.98, 862,346.63 and 338,405.51

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Solution

The fourth proportional to 624,891.98, 862,346.63 and 338,405.51 is: 466,997.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,891.98 : 862,346.63 = 338,405.51 : x
  2. Step 2: Convert to fraction form
    624,891.98/862,346.63 = 338,405.51/x
  3. Step 3: Cross multiply
    624,891.98x = 862,346.63 × 338,405.51
  4. Step 4: Simplify right side
    624,891.98x = 291,822,845,118.17
  5. Step 5: Solve for x
    x = 291,822,845,118.17/624,891.98
  6. Step 6: Final answer
    x = 466,997.27

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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.