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Finding the Fourth Proportional to 937,341.92, 1,405,722 and 338,225.28

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Solution

The fourth proportional to 937,341.92, 1,405,722 and 338,225.28 is: 507,232.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    937,341.92 : 1,405,722 = 338,225.28 : x
  2. Step 2: Convert to fraction form
    937,341.92/1,405,722 = 338,225.28/x
  3. Step 3: Cross multiply
    937,341.92x = 1,405,722 × 338,225.28
  4. Step 4: Simplify right side
    937,341.92x = 475,450,717,052.16
  5. Step 5: Solve for x
    x = 475,450,717,052.16/937,341.92
  6. Step 6: Final answer
    x = 507,232.96

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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.