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Finding the Fourth Proportional to 607,368.60, 911,052.90 and 186,643.80

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Solution

The fourth proportional to 607,368.60, 911,052.90 and 186,643.80 is: 279,965.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,368.60 : 911,052.90 = 186,643.80 : x
  2. Step 2: Convert to fraction form
    607,368.60/911,052.90 = 186,643.80/x
  3. Step 3: Cross multiply
    607,368.60x = 911,052.90 × 186,643.80
  4. Step 4: Simplify right side
    607,368.60x = 170,042,375,257.02
  5. Step 5: Solve for x
    x = 170,042,375,257.02/607,368.60
  6. Step 6: Final answer
    x = 279,965.70

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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.