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Finding the Fourth Proportional to 388,537.03, 582,657.90 and 185,925.16

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Solution

The fourth proportional to 388,537.03, 582,657.90 and 185,925.16 is: 278,817.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,537.03 : 582,657.90 = 185,925.16 : x
  2. Step 2: Convert to fraction form
    388,537.03/582,657.90 = 185,925.16/x
  3. Step 3: Cross multiply
    388,537.03x = 582,657.90 × 185,925.16
  4. Step 4: Simplify right side
    388,537.03x = 108,330,763,282.76
  5. Step 5: Solve for x
    x = 108,330,763,282.76/388,537.03
  6. Step 6: Final answer
    x = 278,817.09

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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.