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Finding the Fourth Proportional to 614,166.21, 847,575.54 and 342,234.45

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Solution

The fourth proportional to 614,166.21, 847,575.54 and 342,234.45 is: 472,298.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,166.21 : 847,575.54 = 342,234.45 : x
  2. Step 2: Convert to fraction form
    614,166.21/847,575.54 = 342,234.45/x
  3. Step 3: Cross multiply
    614,166.21x = 847,575.54 × 342,234.45
  4. Step 4: Simplify right side
    614,166.21x = 290,069,548,765.35
  5. Step 5: Solve for x
    x = 290,069,548,765.35/614,166.21
  6. Step 6: Final answer
    x = 472,298.12

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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.