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Finding the Fourth Proportional to 682,840.80, 954,205.65 and 682,840.80

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Solution

The fourth proportional to 682,840.80, 954,205.65 and 682,840.80 is: 954,205.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,840.80 : 954,205.65 = 682,840.80 : x
  2. Step 2: Convert to fraction form
    682,840.80/954,205.65 = 682,840.80/x
  3. Step 3: Cross multiply
    682,840.80x = 954,205.65 × 682,840.80
  4. Step 4: Simplify right side
    682,840.80x = 651,570,549,410.52
  5. Step 5: Solve for x
    x = 651,570,549,410.52/682,840.80
  6. Step 6: Final answer
    x = 954,205.65

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.