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Finding the Fourth Proportional to 608,973.60, 911,640.45 and 368,359.33

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Solution

The fourth proportional to 608,973.60, 911,640.45 and 368,359.33 is: 551,438.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,973.60 : 911,640.45 = 368,359.33 : x
  2. Step 2: Convert to fraction form
    608,973.60/911,640.45 = 368,359.33/x
  3. Step 3: Cross multiply
    608,973.60x = 911,640.45 × 368,359.33
  4. Step 4: Simplify right side
    608,973.60x = 335,811,265,362.90
  5. Step 5: Solve for x
    x = 335,811,265,362.90/608,973.60
  6. Step 6: Final answer
    x = 551,438.13

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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.