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Finding the Fourth Proportional to 540,813.11, 746,415.74 and 325,953.42

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Solution

The fourth proportional to 540,813.11, 746,415.74 and 325,953.42 is: 449,872.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,813.11 : 746,415.74 = 325,953.42 : x
  2. Step 2: Convert to fraction form
    540,813.11/746,415.74 = 325,953.42/x
  3. Step 3: Cross multiply
    540,813.11x = 746,415.74 × 325,953.42
  4. Step 4: Simplify right side
    540,813.11x = 243,296,761,565.06
  5. Step 5: Solve for x
    x = 243,296,761,565.06/540,813.11
  6. Step 6: Final answer
    x = 449,872.16

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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.