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Finding the Fourth Proportional to 461,405.60, 692,108.40 and 336,989.60

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Solution

The fourth proportional to 461,405.60, 692,108.40 and 336,989.60 is: 505,484.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,405.60 : 692,108.40 = 336,989.60 : x
  2. Step 2: Convert to fraction form
    461,405.60/692,108.40 = 336,989.60/x
  3. Step 3: Cross multiply
    461,405.60x = 692,108.40 × 336,989.60
  4. Step 4: Simplify right side
    461,405.60x = 233,233,332,872.64
  5. Step 5: Solve for x
    x = 233,233,332,872.64/461,405.60
  6. Step 6: Final answer
    x = 505,484.40

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.