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Finding the Fourth Proportional to 1,045.18, 1,567.00 and 634.24

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Solution

The fourth proportional to 1,045.18, 1,567.00 and 634.24 is: 950.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045.18 : 1,567.00 = 634.24 : x
  2. Step 2: Convert to fraction form
    1,045.18/1,567.00 = 634.24/x
  3. Step 3: Cross multiply
    1,045.18x = 1,567.00 × 634.24
  4. Step 4: Simplify right side
    1,045.18x = 993,848.58
  5. Step 5: Solve for x
    x = 993,848.58/1,045.18
  6. Step 6: Final answer
    x = 950.89

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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.