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Finding the Fourth Proportional to 567,860, 851,934 and 212,875.04

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Solution

The fourth proportional to 567,860, 851,934 and 212,875.04 is: 319,366.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,860 : 851,934 = 212,875.04 : x
  2. Step 2: Convert to fraction form
    567,860/851,934 = 212,875.04/x
  3. Step 3: Cross multiply
    567,860x = 851,934 × 212,875.04
  4. Step 4: Simplify right side
    567,860x = 181,355,484,327.36
  5. Step 5: Solve for x
    x = 181,355,484,327.36/567,860
  6. Step 6: Final answer
    x = 319,366.54

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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.