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Finding the Fourth Proportional to 768,292.76, 1,060,260.99 and 424,127.89

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Solution

The fourth proportional to 768,292.76, 1,060,260.99 and 424,127.89 is: 585,305.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,292.76 : 1,060,260.99 = 424,127.89 : x
  2. Step 2: Convert to fraction form
    768,292.76/1,060,260.99 = 424,127.89/x
  3. Step 3: Cross multiply
    768,292.76x = 1,060,260.99 × 424,127.89
  4. Step 4: Simplify right side
    768,292.76x = 449,686,256,538.01
  5. Step 5: Solve for x
    x = 449,686,256,538.01/768,292.76
  6. Step 6: Final answer
    x = 585,305.86

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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.