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Finding the Fourth Proportional to 1,684.76, 2,526.18 and 697.01

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Solution

The fourth proportional to 1,684.76, 2,526.18 and 697.01 is: 1,045.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,684.76 : 2,526.18 = 697.01 : x
  2. Step 2: Convert to fraction form
    1,684.76/2,526.18 = 697.01/x
  3. Step 3: Cross multiply
    1,684.76x = 2,526.18 × 697.01
  4. Step 4: Simplify right side
    1,684.76x = 1,760,772.72
  5. Step 5: Solve for x
    x = 1,760,772.72/1,684.76
  6. Step 6: Final answer
    x = 1,045.12

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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.