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Finding the Fourth Proportional to 567,045.30, 850,567.95 and 211,985.85

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Solution

The fourth proportional to 567,045.30, 850,567.95 and 211,985.85 is: 317,978.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,045.30 : 850,567.95 = 211,985.85 : x
  2. Step 2: Convert to fraction form
    567,045.30/850,567.95 = 211,985.85/x
  3. Step 3: Cross multiply
    567,045.30x = 850,567.95 × 211,985.85
  4. Step 4: Simplify right side
    567,045.30x = 180,308,369,863.51
  5. Step 5: Solve for x
    x = 180,308,369,863.51/567,045.30
  6. Step 6: Final answer
    x = 317,978.78

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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.