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Finding the Fourth Proportional to 896,285.28, 1,236,816 and 533,736

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Solution

The fourth proportional to 896,285.28, 1,236,816 and 533,736 is: 736,521.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,285.28 : 1,236,816 = 533,736 : x
  2. Step 2: Convert to fraction form
    896,285.28/1,236,816 = 533,736/x
  3. Step 3: Cross multiply
    896,285.28x = 1,236,816 × 533,736
  4. Step 4: Simplify right side
    896,285.28x = 660,133,224,576
  5. Step 5: Solve for x
    x = 660,133,224,576/896,285.28
  6. Step 6: Final answer
    x = 736,521.33

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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.