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Finding the Fourth Proportional to 482,797.32, 666,216.30 and 286,529.94

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Solution

The fourth proportional to 482,797.32, 666,216.30 and 286,529.94 is: 395,385.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,797.32 : 666,216.30 = 286,529.94 : x
  2. Step 2: Convert to fraction form
    482,797.32/666,216.30 = 286,529.94/x
  3. Step 3: Cross multiply
    482,797.32x = 666,216.30 × 286,529.94
  4. Step 4: Simplify right side
    482,797.32x = 190,890,916,466.02
  5. Step 5: Solve for x
    x = 190,890,916,466.02/482,797.32
  6. Step 6: Final answer
    x = 395,385.20

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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.