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Finding the Fourth Proportional to 369,968.90, 554,953.35 and 328,634.60

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Solution

The fourth proportional to 369,968.90, 554,953.35 and 328,634.60 is: 492,951.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,968.90 : 554,953.35 = 328,634.60 : x
  2. Step 2: Convert to fraction form
    369,968.90/554,953.35 = 328,634.60/x
  3. Step 3: Cross multiply
    369,968.90x = 554,953.35 × 328,634.60
  4. Step 4: Simplify right side
    369,968.90x = 182,376,872,195.91
  5. Step 5: Solve for x
    x = 182,376,872,195.91/369,968.90
  6. Step 6: Final answer
    x = 492,951.90

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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.