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Finding the Fourth Proportional to 2,470.99, 3,707.40 and 1,155.49

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Solution

The fourth proportional to 2,470.99, 3,707.40 and 1,155.49 is: 1,733.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,470.99 : 3,707.40 = 1,155.49 : x
  2. Step 2: Convert to fraction form
    2,470.99/3,707.40 = 1,155.49/x
  3. Step 3: Cross multiply
    2,470.99x = 3,707.40 × 1,155.49
  4. Step 4: Simplify right side
    2,470.99x = 4,283,863.63
  5. Step 5: Solve for x
    x = 4,283,863.63/2,470.99
  6. Step 6: Final answer
    x = 1,733.66

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1.5x scale

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.