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Finding the Fourth Proportional to 472,231.92, 651,661.04 and 257,367.36

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Solution

The fourth proportional to 472,231.92, 651,661.04 and 257,367.36 is: 355,156.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,231.92 : 651,661.04 = 257,367.36 : x
  2. Step 2: Convert to fraction form
    472,231.92/651,661.04 = 257,367.36/x
  3. Step 3: Cross multiply
    472,231.92x = 651,661.04 × 257,367.36
  4. Step 4: Simplify right side
    472,231.92x = 167,716,281,479.65
  5. Step 5: Solve for x
    x = 167,716,281,479.65/472,231.92
  6. Step 6: Final answer
    x = 355,156.60

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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.