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Finding the Fourth Proportional to 519,496.35, 716,897.96 and 290,057.17

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Solution

The fourth proportional to 519,496.35, 716,897.96 and 290,057.17 is: 400,274.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,496.35 : 716,897.96 = 290,057.17 : x
  2. Step 2: Convert to fraction form
    519,496.35/716,897.96 = 290,057.17/x
  3. Step 3: Cross multiply
    519,496.35x = 716,897.96 × 290,057.17
  4. Step 4: Simplify right side
    519,496.35x = 207,941,393,456.37
  5. Step 5: Solve for x
    x = 207,941,393,456.37/519,496.35
  6. Step 6: Final answer
    x = 400,274.98

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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.