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Finding the Fourth Proportional to 679,544.58, 937,751.64 and 373,620.66

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Solution

The fourth proportional to 679,544.58, 937,751.64 and 373,620.66 is: 515,585.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,544.58 : 937,751.64 = 373,620.66 : x
  2. Step 2: Convert to fraction form
    679,544.58/937,751.64 = 373,620.66/x
  3. Step 3: Cross multiply
    679,544.58x = 937,751.64 × 373,620.66
  4. Step 4: Simplify right side
    679,544.58x = 350,363,386,652.88
  5. Step 5: Solve for x
    x = 350,363,386,652.88/679,544.58
  6. Step 6: Final answer
    x = 515,585.58

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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.