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Finding the Fourth Proportional to 1,690.51, 2,535.77 and 594.28

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Solution

The fourth proportional to 1,690.51, 2,535.77 and 594.28 is: 891.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690.51 : 2,535.77 = 594.28 : x
  2. Step 2: Convert to fraction form
    1,690.51/2,535.77 = 594.28/x
  3. Step 3: Cross multiply
    1,690.51x = 2,535.77 × 594.28
  4. Step 4: Simplify right side
    1,690.51x = 1,506,957.40
  5. Step 5: Solve for x
    x = 1,506,957.40/1,690.51
  6. Step 6: Final answer
    x = 891.42

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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.