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Finding the Fourth Proportional to 893,548.10, 1,233,123.90 and 511,697.90

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Solution

The fourth proportional to 893,548.10, 1,233,123.90 and 511,697.90 is: 706,158.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,548.10 : 1,233,123.90 = 511,697.90 : x
  2. Step 2: Convert to fraction form
    893,548.10/1,233,123.90 = 511,697.90/x
  3. Step 3: Cross multiply
    893,548.10x = 1,233,123.90 × 511,697.90
  4. Step 4: Simplify right side
    893,548.10x = 630,986,910,069.81
  5. Step 5: Solve for x
    x = 630,986,910,069.81/893,548.10
  6. Step 6: Final answer
    x = 706,158.86

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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.