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Finding the Fourth Proportional to 1,045.23, 1,567.80 and 352.23

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Solution

The fourth proportional to 1,045.23, 1,567.80 and 352.23 is: 528.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045.23 : 1,567.80 = 352.23 : x
  2. Step 2: Convert to fraction form
    1,045.23/1,567.80 = 352.23/x
  3. Step 3: Cross multiply
    1,045.23x = 1,567.80 × 352.23
  4. Step 4: Simplify right side
    1,045.23x = 552,226.19
  5. Step 5: Solve for x
    x = 552,226.19/1,045.23
  6. Step 6: Final answer
    x = 528.33

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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.