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Finding the Fourth Proportional to 518,796.65, 773,037.70 and 462,201.89

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Solution

The fourth proportional to 518,796.65, 773,037.70 and 462,201.89 is: 688,708.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,796.65 : 773,037.70 = 462,201.89 : x
  2. Step 2: Convert to fraction form
    518,796.65/773,037.70 = 462,201.89/x
  3. Step 3: Cross multiply
    518,796.65x = 773,037.70 × 462,201.89
  4. Step 4: Simplify right side
    518,796.65x = 357,299,480,960.56
  5. Step 5: Solve for x
    x = 357,299,480,960.56/518,796.65
  6. Step 6: Final answer
    x = 688,708.15

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.