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Finding the Fourth Proportional to 472,668.92, 709,293.76 and 248,190.38

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Solution

The fourth proportional to 472,668.92, 709,293.76 and 248,190.38 is: 372,438.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,668.92 : 709,293.76 = 248,190.38 : x
  2. Step 2: Convert to fraction form
    472,668.92/709,293.76 = 248,190.38/x
  3. Step 3: Cross multiply
    472,668.92x = 709,293.76 × 248,190.38
  4. Step 4: Simplify right side
    472,668.92x = 176,039,883,038.61
  5. Step 5: Solve for x
    x = 176,039,883,038.61/472,668.92
  6. Step 6: Final answer
    x = 372,438.04

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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.