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Finding the Fourth Proportional to 1,295.16, 1,941.01 and 472.66

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Solution

The fourth proportional to 1,295.16, 1,941.01 and 472.66 is: 708.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295.16 : 1,941.01 = 472.66 : x
  2. Step 2: Convert to fraction form
    1,295.16/1,941.01 = 472.66/x
  3. Step 3: Cross multiply
    1,295.16x = 1,941.01 × 472.66
  4. Step 4: Simplify right side
    1,295.16x = 917,437.79
  5. Step 5: Solve for x
    x = 917,437.79/1,295.16
  6. Step 6: Final answer
    x = 708.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.