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Finding the Fourth Proportional to 1,167.58, 1,751.60 and 551.98

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Solution

The fourth proportional to 1,167.58, 1,751.60 and 551.98 is: 828.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167.58 : 1,751.60 = 551.98 : x
  2. Step 2: Convert to fraction form
    1,167.58/1,751.60 = 551.98/x
  3. Step 3: Cross multiply
    1,167.58x = 1,751.60 × 551.98
  4. Step 4: Simplify right side
    1,167.58x = 966,848.17
  5. Step 5: Solve for x
    x = 966,848.17/1,167.58
  6. Step 6: Final answer
    x = 828.08

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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.