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Finding the Fourth Proportional to 922,451.22, 1,384,103.70 and 353,642.22

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Solution

The fourth proportional to 922,451.22, 1,384,103.70 and 353,642.22 is: 530,626.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,451.22 : 1,384,103.70 = 353,642.22 : x
  2. Step 2: Convert to fraction form
    922,451.22/1,384,103.70 = 353,642.22/x
  3. Step 3: Cross multiply
    922,451.22x = 1,384,103.70 × 353,642.22
  4. Step 4: Simplify right side
    922,451.22x = 489,477,505,178.21
  5. Step 5: Solve for x
    x = 489,477,505,178.21/922,451.22
  6. Step 6: Final answer
    x = 530,626.98

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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.