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Finding the Fourth Proportional to 567,972.54, 783,662.31 and 347,153.94

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Solution

The fourth proportional to 567,972.54, 783,662.31 and 347,153.94 is: 478,986.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,972.54 : 783,662.31 = 347,153.94 : x
  2. Step 2: Convert to fraction form
    567,972.54/783,662.31 = 347,153.94/x
  3. Step 3: Cross multiply
    567,972.54x = 783,662.31 × 347,153.94
  4. Step 4: Simplify right side
    567,972.54x = 272,051,458,546.00
  5. Step 5: Solve for x
    x = 272,051,458,546.00/567,972.54
  6. Step 6: Final answer
    x = 478,986.99

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1.5x scale

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.