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Finding the Fourth Proportional to 326,275.96, 489,355.60 and 207,594.76

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Solution

The fourth proportional to 326,275.96, 489,355.60 and 207,594.76 is: 311,355.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,275.96 : 489,355.60 = 207,594.76 : x
  2. Step 2: Convert to fraction form
    326,275.96/489,355.60 = 207,594.76/x
  3. Step 3: Cross multiply
    326,275.96x = 489,355.60 × 207,594.76
  4. Step 4: Simplify right side
    326,275.96x = 101,587,658,336.66
  5. Step 5: Solve for x
    x = 101,587,658,336.66/326,275.96
  6. Step 6: Final answer
    x = 311,355.02

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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.