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Finding the Fourth Proportional to 922,240.64, 1,383,574.80 and 361,280

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Solution

The fourth proportional to 922,240.64, 1,383,574.80 and 361,280 is: 542,003.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,240.64 : 1,383,574.80 = 361,280 : x
  2. Step 2: Convert to fraction form
    922,240.64/1,383,574.80 = 361,280/x
  3. Step 3: Cross multiply
    922,240.64x = 1,383,574.80 × 361,280
  4. Step 4: Simplify right side
    922,240.64x = 499,857,903,744
  5. Step 5: Solve for x
    x = 499,857,903,744/922,240.64
  6. Step 6: Final answer
    x = 542,003.77

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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.