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Finding the Fourth Proportional to 476,841.70, 714,679.35 and 210,319.30

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Solution

The fourth proportional to 476,841.70, 714,679.35 and 210,319.30 is: 315,221.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,841.70 : 714,679.35 = 210,319.30 : x
  2. Step 2: Convert to fraction form
    476,841.70/714,679.35 = 210,319.30/x
  3. Step 3: Cross multiply
    476,841.70x = 714,679.35 × 210,319.30
  4. Step 4: Simplify right side
    476,841.70x = 150,310,860,616.46
  5. Step 5: Solve for x
    x = 150,310,860,616.46/476,841.70
  6. Step 6: Final answer
    x = 315,221.72

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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.