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Finding the Fourth Proportional to 567,870.87, 783,664.26 and 309,753.37

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Solution

The fourth proportional to 567,870.87, 783,664.26 and 309,753.37 is: 427,460.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,870.87 : 783,664.26 = 309,753.37 : x
  2. Step 2: Convert to fraction form
    567,870.87/783,664.26 = 309,753.37/x
  3. Step 3: Cross multiply
    567,870.87x = 783,664.26 × 309,753.37
  4. Step 4: Simplify right side
    567,870.87x = 242,742,645,483.56
  5. Step 5: Solve for x
    x = 242,742,645,483.56/567,870.87
  6. Step 6: Final answer
    x = 427,460.99

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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.