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Finding the Fourth Proportional to 889,970.92, 1,334,023.26 and 416,257

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Solution

The fourth proportional to 889,970.92, 1,334,023.26 and 416,257 is: 623,949.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,970.92 : 1,334,023.26 = 416,257 : x
  2. Step 2: Convert to fraction form
    889,970.92/1,334,023.26 = 416,257/x
  3. Step 3: Cross multiply
    889,970.92x = 1,334,023.26 × 416,257
  4. Step 4: Simplify right side
    889,970.92x = 555,296,520,137.82
  5. Step 5: Solve for x
    x = 555,296,520,137.82/889,970.92
  6. Step 6: Final answer
    x = 623,949.06

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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.