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Finding the Fourth Proportional to 567,442.22, 783,063.89 and 309,313.52

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Solution

The fourth proportional to 567,442.22, 783,063.89 and 309,313.52 is: 426,849.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,442.22 : 783,063.89 = 309,313.52 : x
  2. Step 2: Convert to fraction form
    567,442.22/783,063.89 = 309,313.52/x
  3. Step 3: Cross multiply
    567,442.22x = 783,063.89 × 309,313.52
  4. Step 4: Simplify right side
    567,442.22x = 242,212,245,058.76
  5. Step 5: Solve for x
    x = 242,212,245,058.76/567,442.22
  6. Step 6: Final answer
    x = 426,849.18

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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.