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Finding the Fourth Proportional to 370,532.48, 511,344.74 and 225,288.32

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Solution

The fourth proportional to 370,532.48, 511,344.74 and 225,288.32 is: 310,903.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,532.48 : 511,344.74 = 225,288.32 : x
  2. Step 2: Convert to fraction form
    370,532.48/511,344.74 = 225,288.32/x
  3. Step 3: Cross multiply
    370,532.48x = 511,344.74 × 225,288.32
  4. Step 4: Simplify right side
    370,532.48x = 115,199,995,421.93
  5. Step 5: Solve for x
    x = 115,199,995,421.93/370,532.48
  6. Step 6: Final answer
    x = 310,903.91

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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.