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Finding the Fourth Proportional to 1,045.01, 1,567.87 and 557.73

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Solution

The fourth proportional to 1,045.01, 1,567.87 and 557.73 is: 836.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045.01 : 1,567.87 = 557.73 : x
  2. Step 2: Convert to fraction form
    1,045.01/1,567.87 = 557.73/x
  3. Step 3: Cross multiply
    1,045.01x = 1,567.87 × 557.73
  4. Step 4: Simplify right side
    1,045.01x = 874,446.74
  5. Step 5: Solve for x
    x = 874,446.74/1,045.01
  6. Step 6: Final answer
    x = 836.78

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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.