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Finding the Fourth Proportional to 445,164.90, 614,358.74 and 251,590.49

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Solution

The fourth proportional to 445,164.90, 614,358.74 and 251,590.49 is: 347,212.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,164.90 : 614,358.74 = 251,590.49 : x
  2. Step 2: Convert to fraction form
    445,164.90/614,358.74 = 251,590.49/x
  3. Step 3: Cross multiply
    445,164.90x = 614,358.74 × 251,590.49
  4. Step 4: Simplify right side
    445,164.90x = 154,566,817,823.84
  5. Step 5: Solve for x
    x = 154,566,817,823.84/445,164.90
  6. Step 6: Final answer
    x = 347,212.50

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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.