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Finding the Fourth Proportional to 567.36, 782.70 and 346.23

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Solution

The fourth proportional to 567.36, 782.70 and 346.23 is: 477.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    567.36 : 782.70 = 346.23 : x
  2. Step 2: Convert to fraction form
    567.36/782.70 = 346.23/x
  3. Step 3: Cross multiply
    567.36x = 782.70 × 346.23
  4. Step 4: Simplify right side
    567.36x = 270,994.22
  5. Step 5: Solve for x
    x = 270,994.22/567.36
  6. Step 6: Final answer
    x = 477.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.