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Finding the Fourth Proportional to 368,200.80, 551,523.60 and 328,802.40

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Solution

The fourth proportional to 368,200.80, 551,523.60 and 328,802.40 is: 492,509.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,200.80 : 551,523.60 = 328,802.40 : x
  2. Step 2: Convert to fraction form
    368,200.80/551,523.60 = 328,802.40/x
  3. Step 3: Cross multiply
    368,200.80x = 551,523.60 × 328,802.40
  4. Step 4: Simplify right side
    368,200.80x = 181,342,283,336.64
  5. Step 5: Solve for x
    x = 181,342,283,336.64/368,200.80
  6. Step 6: Final answer
    x = 492,509.21

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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.