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Finding the Fourth Proportional to 768,332.42, 1,060,270.89 and 424,160.96

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Solution

The fourth proportional to 768,332.42, 1,060,270.89 and 424,160.96 is: 585,326.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,332.42 : 1,060,270.89 = 424,160.96 : x
  2. Step 2: Convert to fraction form
    768,332.42/1,060,270.89 = 424,160.96/x
  3. Step 3: Cross multiply
    768,332.42x = 1,060,270.89 × 424,160.96
  4. Step 4: Simplify right side
    768,332.42x = 449,725,518,562.45
  5. Step 5: Solve for x
    x = 449,725,518,562.45/768,332.42
  6. Step 6: Final answer
    x = 585,326.75

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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.