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Finding the Fourth Proportional to 457,344.63, 631,159.29 and 276,054.08

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Solution

The fourth proportional to 457,344.63, 631,159.29 and 276,054.08 is: 380,968.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,344.63 : 631,159.29 = 276,054.08 : x
  2. Step 2: Convert to fraction form
    457,344.63/631,159.29 = 276,054.08/x
  3. Step 3: Cross multiply
    457,344.63x = 631,159.29 × 276,054.08
  4. Step 4: Simplify right side
    457,344.63x = 174,234,093,978.61
  5. Step 5: Solve for x
    x = 174,234,093,978.61/457,344.63
  6. Step 6: Final answer
    x = 380,968.93

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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.