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Finding the Fourth Proportional to 682,406.40, 954,124.80 and 682,406.40

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Solution

The fourth proportional to 682,406.40, 954,124.80 and 682,406.40 is: 954,124.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,406.40 : 954,124.80 = 682,406.40 : x
  2. Step 2: Convert to fraction form
    682,406.40/954,124.80 = 682,406.40/x
  3. Step 3: Cross multiply
    682,406.40x = 954,124.80 × 682,406.40
  4. Step 4: Simplify right side
    682,406.40x = 651,100,869,918.72
  5. Step 5: Solve for x
    x = 651,100,869,918.72/682,406.40
  6. Step 6: Final answer
    x = 954,124.80

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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.