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Finding the Fourth Proportional to 682,587.99, 942,158.78 and 396,200.34

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Solution

The fourth proportional to 682,587.99, 942,158.78 and 396,200.34 is: 546,865.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,587.99 : 942,158.78 = 396,200.34 : x
  2. Step 2: Convert to fraction form
    682,587.99/942,158.78 = 396,200.34/x
  3. Step 3: Cross multiply
    682,587.99x = 942,158.78 × 396,200.34
  4. Step 4: Simplify right side
    682,587.99x = 373,283,628,969.99
  5. Step 5: Solve for x
    x = 373,283,628,969.99/682,587.99
  6. Step 6: Final answer
    x = 546,865.22

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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.