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Finding the Fourth Proportional to 624,014.80, 936,022.20 and 512,040.40

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Solution

The fourth proportional to 624,014.80, 936,022.20 and 512,040.40 is: 768,060.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,014.80 : 936,022.20 = 512,040.40 : x
  2. Step 2: Convert to fraction form
    624,014.80/936,022.20 = 512,040.40/x
  3. Step 3: Cross multiply
    624,014.80x = 936,022.20 × 512,040.40
  4. Step 4: Simplify right side
    624,014.80x = 479,281,181,696.88
  5. Step 5: Solve for x
    x = 479,281,181,696.88/624,014.80
  6. Step 6: Final answer
    x = 768,060.60

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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.