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Finding the Fourth Proportional to 607,404.81, 911,084.54 and 186,669.75

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Solution

The fourth proportional to 607,404.81, 911,084.54 and 186,669.75 is: 279,997.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,404.81 : 911,084.54 = 186,669.75 : x
  2. Step 2: Convert to fraction form
    607,404.81/911,084.54 = 186,669.75/x
  3. Step 3: Cross multiply
    607,404.81x = 911,084.54 × 186,669.75
  4. Step 4: Simplify right side
    607,404.81x = 170,071,922,377.32
  5. Step 5: Solve for x
    x = 170,071,922,377.32/607,404.81
  6. Step 6: Final answer
    x = 279,997.65

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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.