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Finding the Fourth Proportional to 607,651.60, 911,477.40 and 186,872.80

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Solution

The fourth proportional to 607,651.60, 911,477.40 and 186,872.80 is: 280,309.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,651.60 : 911,477.40 = 186,872.80 : x
  2. Step 2: Convert to fraction form
    607,651.60/911,477.40 = 186,872.80/x
  3. Step 3: Cross multiply
    607,651.60x = 911,477.40 × 186,872.80
  4. Step 4: Simplify right side
    607,651.60x = 170,330,333,874.72
  5. Step 5: Solve for x
    x = 170,330,333,874.72/607,651.60
  6. Step 6: Final answer
    x = 280,309.20

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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.