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Finding the Fourth Proportional to 460,986.30, 691,479.45 and 367,674.30

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Solution

The fourth proportional to 460,986.30, 691,479.45 and 367,674.30 is: 551,511.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,986.30 : 691,479.45 = 367,674.30 : x
  2. Step 2: Convert to fraction form
    460,986.30/691,479.45 = 367,674.30/x
  3. Step 3: Cross multiply
    460,986.30x = 691,479.45 × 367,674.30
  4. Step 4: Simplify right side
    460,986.30x = 254,239,222,743.14
  5. Step 5: Solve for x
    x = 254,239,222,743.14/460,986.30
  6. Step 6: Final answer
    x = 551,511.45

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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.