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Finding the Fourth Proportional to 922,093.92, 1,382,807.96 and 389,656.08

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Solution

The fourth proportional to 922,093.92, 1,382,807.96 and 389,656.08 is: 584,343.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,093.92 : 1,382,807.96 = 389,656.08 : x
  2. Step 2: Convert to fraction form
    922,093.92/1,382,807.96 = 389,656.08/x
  3. Step 3: Cross multiply
    922,093.92x = 1,382,807.96 × 389,656.08
  4. Step 4: Simplify right side
    922,093.92x = 538,819,529,086.40
  5. Step 5: Solve for x
    x = 538,819,529,086.40/922,093.92
  6. Step 6: Final answer
    x = 584,343.44

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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.