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Finding the Fourth Proportional to 631,366.30, 947,042.97 and 364,957.30

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Solution

The fourth proportional to 631,366.30, 947,042.97 and 364,957.30 is: 547,432.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,366.30 : 947,042.97 = 364,957.30 : x
  2. Step 2: Convert to fraction form
    631,366.30/947,042.97 = 364,957.30/x
  3. Step 3: Cross multiply
    631,366.30x = 947,042.97 × 364,957.30
  4. Step 4: Simplify right side
    631,366.30x = 345,630,245,315.18
  5. Step 5: Solve for x
    x = 345,630,245,315.18/631,366.30
  6. Step 6: Final answer
    x = 547,432.20

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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.