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Finding the Fourth Proportional to 614,783.40, 922,175.10 and 414,016.80

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Solution

The fourth proportional to 614,783.40, 922,175.10 and 414,016.80 is: 621,025.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,783.40 : 922,175.10 = 414,016.80 : x
  2. Step 2: Convert to fraction form
    614,783.40/922,175.10 = 414,016.80/x
  3. Step 3: Cross multiply
    614,783.40x = 922,175.10 × 414,016.80
  4. Step 4: Simplify right side
    614,783.40x = 381,795,983,941.68
  5. Step 5: Solve for x
    x = 381,795,983,941.68/614,783.40
  6. Step 6: Final answer
    x = 621,025.20

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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.