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Finding the Fourth Proportional to 986,613, 1,361,525.94 and 533,904

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Solution

The fourth proportional to 986,613, 1,361,525.94 and 533,904 is: 736,787.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,613 : 1,361,525.94 = 533,904 : x
  2. Step 2: Convert to fraction form
    986,613/1,361,525.94 = 533,904/x
  3. Step 3: Cross multiply
    986,613x = 1,361,525.94 × 533,904
  4. Step 4: Simplify right side
    986,613x = 726,924,145,469.76
  5. Step 5: Solve for x
    x = 726,924,145,469.76/986,613
  6. Step 6: Final answer
    x = 736,787.52

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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.