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Finding the Fourth Proportional to 467,978.84, 645,810.93 and 264,072.98

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Solution

The fourth proportional to 467,978.84, 645,810.93 and 264,072.98 is: 364,420.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,978.84 : 645,810.93 = 264,072.98 : x
  2. Step 2: Convert to fraction form
    467,978.84/645,810.93 = 264,072.98/x
  3. Step 3: Cross multiply
    467,978.84x = 645,810.93 × 264,072.98
  4. Step 4: Simplify right side
    467,978.84x = 170,541,216,801.67
  5. Step 5: Solve for x
    x = 170,541,216,801.67/467,978.84
  6. Step 6: Final answer
    x = 364,420.79

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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.