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Finding the Fourth Proportional to 507,936.61, 700,953.51 and 281,582.11

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Solution

The fourth proportional to 507,936.61, 700,953.51 and 281,582.11 is: 388,583.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,936.61 : 700,953.51 = 281,582.11 : x
  2. Step 2: Convert to fraction form
    507,936.61/700,953.51 = 281,582.11/x
  3. Step 3: Cross multiply
    507,936.61x = 700,953.51 × 281,582.11
  4. Step 4: Simplify right side
    507,936.61x = 197,375,968,357.71
  5. Step 5: Solve for x
    x = 197,375,968,357.71/507,936.61
  6. Step 6: Final answer
    x = 388,583.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.