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Finding the Fourth Proportional to 567.48, 851.70 and 351

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Solution

The fourth proportional to 567.48, 851.70 and 351 is: 526.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    567.48 : 851.70 = 351 : x
  2. Step 2: Convert to fraction form
    567.48/851.70 = 351/x
  3. Step 3: Cross multiply
    567.48x = 851.70 × 351
  4. Step 4: Simplify right side
    567.48x = 298,946.70
  5. Step 5: Solve for x
    x = 298,946.70/567.48
  6. Step 6: Final answer
    x = 526.80

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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.