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Finding the Fourth Proportional to 507,690.81, 761,574.48 and 170,732.43

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Solution

The fourth proportional to 507,690.81, 761,574.48 and 170,732.43 is: 256,111.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,690.81 : 761,574.48 = 170,732.43 : x
  2. Step 2: Convert to fraction form
    507,690.81/761,574.48 = 170,732.43/x
  3. Step 3: Cross multiply
    507,690.81x = 761,574.48 × 170,732.43
  4. Step 4: Simplify right side
    507,690.81x = 130,025,461,596.39
  5. Step 5: Solve for x
    x = 130,025,461,596.39/507,690.81
  6. Step 6: Final answer
    x = 256,111.51

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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.