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Finding the Fourth Proportional to 336,212.80, 504,319.20 and 122,980.30

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Solution

The fourth proportional to 336,212.80, 504,319.20 and 122,980.30 is: 184,470.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,212.80 : 504,319.20 = 122,980.30 : x
  2. Step 2: Convert to fraction form
    336,212.80/504,319.20 = 122,980.30/x
  3. Step 3: Cross multiply
    336,212.80x = 504,319.20 × 122,980.30
  4. Step 4: Simplify right side
    336,212.80x = 62,021,326,511.76
  5. Step 5: Solve for x
    x = 62,021,326,511.76/336,212.80
  6. Step 6: Final answer
    x = 184,470.45

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1.5x scale

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.