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Finding the Fourth Proportional to 2,630,961, 3,946,441.50 and 636,417

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Solution

The fourth proportional to 2,630,961, 3,946,441.50 and 636,417 is: 954,625.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630,961 : 3,946,441.50 = 636,417 : x
  2. Step 2: Convert to fraction form
    2,630,961/3,946,441.50 = 636,417/x
  3. Step 3: Cross multiply
    2,630,961x = 3,946,441.50 × 636,417
  4. Step 4: Simplify right side
    2,630,961x = 2,511,582,460,105.50
  5. Step 5: Solve for x
    x = 2,511,582,460,105.50/2,630,961
  6. Step 6: Final answer
    x = 954,625.50

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Double scale
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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.