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Finding the Fourth Proportional to 922,135.54, 1,383,205.87 and 353,690.88

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Solution

The fourth proportional to 922,135.54, 1,383,205.87 and 353,690.88 is: 530,537.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,135.54 : 1,383,205.87 = 353,690.88 : x
  2. Step 2: Convert to fraction form
    922,135.54/1,383,205.87 = 353,690.88/x
  3. Step 3: Cross multiply
    922,135.54x = 1,383,205.87 × 353,690.88
  4. Step 4: Simplify right side
    922,135.54x = 489,227,301,381.47
  5. Step 5: Solve for x
    x = 489,227,301,381.47/922,135.54
  6. Step 6: Final answer
    x = 530,537.30

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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.