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Finding the Fourth Proportional to 519,798.88, 717,316.80 and 293,453.92

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Solution

The fourth proportional to 519,798.88, 717,316.80 and 293,453.92 is: 404,963.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,798.88 : 717,316.80 = 293,453.92 : x
  2. Step 2: Convert to fraction form
    519,798.88/717,316.80 = 293,453.92/x
  3. Step 3: Cross multiply
    519,798.88x = 717,316.80 × 293,453.92
  4. Step 4: Simplify right side
    519,798.88x = 210,499,426,841.86
  5. Step 5: Solve for x
    x = 210,499,426,841.86/519,798.88
  6. Step 6: Final answer
    x = 404,963.22

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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.