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Finding the Fourth Proportional to 401,658.48, 601,537.80 and 348,780.60

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Solution

The fourth proportional to 401,658.48, 601,537.80 and 348,780.60 is: 522,346.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,658.48 : 601,537.80 = 348,780.60 : x
  2. Step 2: Convert to fraction form
    401,658.48/601,537.80 = 348,780.60/x
  3. Step 3: Cross multiply
    401,658.48x = 601,537.80 × 348,780.60
  4. Step 4: Simplify right side
    401,658.48x = 209,804,714,806.68
  5. Step 5: Solve for x
    x = 209,804,714,806.68/401,658.48
  6. Step 6: Final answer
    x = 522,346.04

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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.