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Finding the Fourth Proportional to 535,095.60, 802,384.20 and 298,186.80

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Solution

The fourth proportional to 535,095.60, 802,384.20 and 298,186.80 is: 447,135.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,095.60 : 802,384.20 = 298,186.80 : x
  2. Step 2: Convert to fraction form
    535,095.60/802,384.20 = 298,186.80/x
  3. Step 3: Cross multiply
    535,095.60x = 802,384.20 × 298,186.80
  4. Step 4: Simplify right side
    535,095.60x = 239,260,376,968.56
  5. Step 5: Solve for x
    x = 239,260,376,968.56/535,095.60
  6. Step 6: Final answer
    x = 447,135.76

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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.