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Finding the Fourth Proportional to 531,643.96, 794,076.89 and 480,965.50

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Solution

The fourth proportional to 531,643.96, 794,076.89 and 480,965.50 is: 718,382.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,643.96 : 794,076.89 = 480,965.50 : x
  2. Step 2: Convert to fraction form
    531,643.96/794,076.89 = 480,965.50/x
  3. Step 3: Cross multiply
    531,643.96x = 794,076.89 × 480,965.50
  4. Step 4: Simplify right side
    531,643.96x = 381,923,588,437.30
  5. Step 5: Solve for x
    x = 381,923,588,437.30/531,643.96
  6. Step 6: Final answer
    x = 718,382.26

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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.