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Finding the Fourth Proportional to 682,627.13, 942,025.84 and 380,821.13

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Solution

The fourth proportional to 682,627.13, 942,025.84 and 380,821.13 is: 525,533.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,627.13 : 942,025.84 = 380,821.13 : x
  2. Step 2: Convert to fraction form
    682,627.13/942,025.84 = 380,821.13/x
  3. Step 3: Cross multiply
    682,627.13x = 942,025.84 × 380,821.13
  4. Step 4: Simplify right side
    682,627.13x = 358,743,344,878.00
  5. Step 5: Solve for x
    x = 358,743,344,878.00/682,627.13
  6. Step 6: Final answer
    x = 525,533.38

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Double scale
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Similar ratio
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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.