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Finding the Fourth Proportional to 768,327.91, 1,060,264.69 and 424,156.46

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Solution

The fourth proportional to 768,327.91, 1,060,264.69 and 424,156.46 is: 585,320.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,327.91 : 1,060,264.69 = 424,156.46 : x
  2. Step 2: Convert to fraction form
    768,327.91/1,060,264.69 = 424,156.46/x
  3. Step 3: Cross multiply
    768,327.91x = 1,060,264.69 × 424,156.46
  4. Step 4: Simplify right side
    768,327.91x = 449,718,111,211.68
  5. Step 5: Solve for x
    x = 449,718,111,211.68/768,327.91
  6. Step 6: Final answer
    x = 585,320.55

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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.