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Finding the Fourth Proportional to 461,411.40, 692,117.10 and 455,190.60

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Solution

The fourth proportional to 461,411.40, 692,117.10 and 455,190.60 is: 682,785.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,411.40 : 692,117.10 = 455,190.60 : x
  2. Step 2: Convert to fraction form
    461,411.40/692,117.10 = 455,190.60/x
  3. Step 3: Cross multiply
    461,411.40x = 692,117.10 × 455,190.60
  4. Step 4: Simplify right side
    461,411.40x = 315,045,198,019.26
  5. Step 5: Solve for x
    x = 315,045,198,019.26/461,411.40
  6. Step 6: Final answer
    x = 682,785.90

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.