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Finding the Fourth Proportional to 610,467.48, 842,274.42 and 355,769.46

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Solution

The fourth proportional to 610,467.48, 842,274.42 and 355,769.46 is: 490,862.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,467.48 : 842,274.42 = 355,769.46 : x
  2. Step 2: Convert to fraction form
    610,467.48/842,274.42 = 355,769.46/x
  3. Step 3: Cross multiply
    610,467.48x = 842,274.42 × 355,769.46
  4. Step 4: Simplify right side
    610,467.48x = 299,655,515,575.21
  5. Step 5: Solve for x
    x = 299,655,515,575.21/610,467.48
  6. Step 6: Final answer
    x = 490,862.37

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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.