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Finding the Fourth Proportional to 922,269.64, 1,383,369.90 and 291,221.32

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Solution

The fourth proportional to 922,269.64, 1,383,369.90 and 291,221.32 is: 436,821.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,269.64 : 1,383,369.90 = 291,221.32 : x
  2. Step 2: Convert to fraction form
    922,269.64/1,383,369.90 = 291,221.32/x
  3. Step 3: Cross multiply
    922,269.64x = 1,383,369.90 × 291,221.32
  4. Step 4: Simplify right side
    922,269.64x = 402,866,808,326.27
  5. Step 5: Solve for x
    x = 402,866,808,326.27/922,269.64
  6. Step 6: Final answer
    x = 436,821.07

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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.