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Finding the Fourth Proportional to 358,898.76, 538,348.92 and 336,976.92

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Solution

The fourth proportional to 358,898.76, 538,348.92 and 336,976.92 is: 505,466.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,898.76 : 538,348.92 = 336,976.92 : x
  2. Step 2: Convert to fraction form
    358,898.76/538,348.92 = 336,976.92/x
  3. Step 3: Cross multiply
    358,898.76x = 538,348.92 × 336,976.92
  4. Step 4: Simplify right side
    358,898.76x = 181,411,160,946.93
  5. Step 5: Solve for x
    x = 181,411,160,946.93/358,898.76
  6. Step 6: Final answer
    x = 505,466.11

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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.