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Finding the Fourth Proportional to 1,497.88, 2,071.11 and 1,313.38

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Solution

The fourth proportional to 1,497.88, 2,071.11 and 1,313.38 is: 1,816.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,497.88 : 2,071.11 = 1,313.38 : x
  2. Step 2: Convert to fraction form
    1,497.88/2,071.11 = 1,313.38/x
  3. Step 3: Cross multiply
    1,497.88x = 2,071.11 × 1,313.38
  4. Step 4: Simplify right side
    1,497.88x = 2,720,154.45
  5. Step 5: Solve for x
    x = 2,720,154.45/1,497.88
  6. Step 6: Final answer
    x = 1,816.00

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1.5x scale

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.