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Finding the Fourth Proportional to 889,712.52, 1,227,891.60 and 507,796.98

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Solution

The fourth proportional to 889,712.52, 1,227,891.60 and 507,796.98 is: 700,810.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,712.52 : 1,227,891.60 = 507,796.98 : x
  2. Step 2: Convert to fraction form
    889,712.52/1,227,891.60 = 507,796.98/x
  3. Step 3: Cross multiply
    889,712.52x = 1,227,891.60 × 507,796.98
  4. Step 4: Simplify right side
    889,712.52x = 623,519,646,247.37
  5. Step 5: Solve for x
    x = 623,519,646,247.37/889,712.52
  6. Step 6: Final answer
    x = 700,810.24

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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.