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Finding the Fourth Proportional to 357,228.78, 537,981.62 and 325,342.32

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Solution

The fourth proportional to 357,228.78, 537,981.62 and 325,342.32 is: 489,961.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,228.78 : 537,981.62 = 325,342.32 : x
  2. Step 2: Convert to fraction form
    357,228.78/537,981.62 = 325,342.32/x
  3. Step 3: Cross multiply
    357,228.78x = 537,981.62 × 325,342.32
  4. Step 4: Simplify right side
    357,228.78x = 175,028,188,086.40
  5. Step 5: Solve for x
    x = 175,028,188,086.40/357,228.78
  6. Step 6: Final answer
    x = 489,961.05

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.