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Finding the Fourth Proportional to 730,607.40, 1,008,236.52 and 424,863

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Solution

The fourth proportional to 730,607.40, 1,008,236.52 and 424,863 is: 586,309.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,607.40 : 1,008,236.52 = 424,863 : x
  2. Step 2: Convert to fraction form
    730,607.40/1,008,236.52 = 424,863/x
  3. Step 3: Cross multiply
    730,607.40x = 1,008,236.52 × 424,863
  4. Step 4: Simplify right side
    730,607.40x = 428,362,392,596.76
  5. Step 5: Solve for x
    x = 428,362,392,596.76/730,607.40
  6. Step 6: Final answer
    x = 586,309.96

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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.