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Finding the Fourth Proportional to 476,431.60, 714,647.40 and 255,247.60

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Solution

The fourth proportional to 476,431.60, 714,647.40 and 255,247.60 is: 382,871.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,431.60 : 714,647.40 = 255,247.60 : x
  2. Step 2: Convert to fraction form
    476,431.60/714,647.40 = 255,247.60/x
  3. Step 3: Cross multiply
    476,431.60x = 714,647.40 × 255,247.60
  4. Step 4: Simplify right side
    476,431.60x = 182,412,033,696.24
  5. Step 5: Solve for x
    x = 182,412,033,696.24/476,431.60
  6. Step 6: Final answer
    x = 382,871.40

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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.