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Finding the Fourth Proportional to 372,347.46, 513,798.37 and 208,966.49

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Solution

The fourth proportional to 372,347.46, 513,798.37 and 208,966.49 is: 288,350.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,347.46 : 513,798.37 = 208,966.49 : x
  2. Step 2: Convert to fraction form
    372,347.46/513,798.37 = 208,966.49/x
  3. Step 3: Cross multiply
    372,347.46x = 513,798.37 × 208,966.49
  4. Step 4: Simplify right side
    372,347.46x = 107,366,641,946.62
  5. Step 5: Solve for x
    x = 107,366,641,946.62/372,347.46
  6. Step 6: Final answer
    x = 288,350.68

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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.