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Finding the Fourth Proportional to 768,351.42, 1,060,383.15 and 424,252.89

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Solution

The fourth proportional to 768,351.42, 1,060,383.15 and 424,252.89 is: 585,501.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,351.42 : 1,060,383.15 = 424,252.89 : x
  2. Step 2: Convert to fraction form
    768,351.42/1,060,383.15 = 424,252.89/x
  3. Step 3: Cross multiply
    768,351.42x = 1,060,383.15 × 424,252.89
  4. Step 4: Simplify right side
    768,351.42x = 449,870,615,894.80
  5. Step 5: Solve for x
    x = 449,870,615,894.80/768,351.42
  6. Step 6: Final answer
    x = 585,501.12

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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.