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Finding the Fourth Proportional to 608,974.47, 911,641.76 and 368,360.19

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Solution

The fourth proportional to 608,974.47, 911,641.76 and 368,360.19 is: 551,439.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,974.47 : 911,641.76 = 368,360.19 : x
  2. Step 2: Convert to fraction form
    608,974.47/911,641.76 = 368,360.19/x
  3. Step 3: Cross multiply
    608,974.47x = 911,641.76 × 368,360.19
  4. Step 4: Simplify right side
    608,974.47x = 335,812,531,925.53
  5. Step 5: Solve for x
    x = 335,812,531,925.53/608,974.47
  6. Step 6: Final answer
    x = 551,439.43

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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.