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Finding the Fourth Proportional to 922,645.80, 1,383,312.51 and 353,544.66

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Solution

The fourth proportional to 922,645.80, 1,383,312.51 and 353,544.66 is: 530,065.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,645.80 : 1,383,312.51 = 353,544.66 : x
  2. Step 2: Convert to fraction form
    922,645.80/1,383,312.51 = 353,544.66/x
  3. Step 3: Cross multiply
    922,645.80x = 1,383,312.51 × 353,544.66
  4. Step 4: Simplify right side
    922,645.80x = 489,062,751,021.70
  5. Step 5: Solve for x
    x = 489,062,751,021.70/922,645.80
  6. Step 6: Final answer
    x = 530,065.55

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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.