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Finding the Fourth Proportional to 889,690.56, 1,227,655.08 and 507,694.56

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Solution

The fourth proportional to 889,690.56, 1,227,655.08 and 507,694.56 is: 700,551.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,690.56 : 1,227,655.08 = 507,694.56 : x
  2. Step 2: Convert to fraction form
    889,690.56/1,227,655.08 = 507,694.56/x
  3. Step 3: Cross multiply
    889,690.56x = 1,227,655.08 × 507,694.56
  4. Step 4: Simplify right side
    889,690.56x = 623,273,805,672.37
  5. Step 5: Solve for x
    x = 623,273,805,672.37/889,690.56
  6. Step 6: Final answer
    x = 700,551.22

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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.