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Finding the Fourth Proportional to 682,705.44, 942,077.52 and 380,892.96

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Solution

The fourth proportional to 682,705.44, 942,077.52 and 380,892.96 is: 525,601.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,705.44 : 942,077.52 = 380,892.96 : x
  2. Step 2: Convert to fraction form
    682,705.44/942,077.52 = 380,892.96/x
  3. Step 3: Cross multiply
    682,705.44x = 942,077.52 × 380,892.96
  4. Step 4: Simplify right side
    682,705.44x = 358,830,695,142.26
  5. Step 5: Solve for x
    x = 358,830,695,142.26/682,705.44
  6. Step 6: Final answer
    x = 525,601.05

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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.