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Finding the Fourth Proportional to 647,095.51, 892,952.58 and 356,694.40

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Solution

The fourth proportional to 647,095.51, 892,952.58 and 356,694.40 is: 492,216.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,095.51 : 892,952.58 = 356,694.40 : x
  2. Step 2: Convert to fraction form
    647,095.51/892,952.58 = 356,694.40/x
  3. Step 3: Cross multiply
    647,095.51x = 892,952.58 × 356,694.40
  4. Step 4: Simplify right side
    647,095.51x = 318,511,184,751.55
  5. Step 5: Solve for x
    x = 318,511,184,751.55/647,095.51
  6. Step 6: Final answer
    x = 492,216.65

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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.