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Finding the Fourth Proportional to 306,653.85, 459,980.78 and 156,844.35

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Solution

The fourth proportional to 306,653.85, 459,980.78 and 156,844.35 is: 235,266.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,653.85 : 459,980.78 = 156,844.35 : x
  2. Step 2: Convert to fraction form
    306,653.85/459,980.78 = 156,844.35/x
  3. Step 3: Cross multiply
    306,653.85x = 459,980.78 × 156,844.35
  4. Step 4: Simplify right side
    306,653.85x = 72,145,385,667.37
  5. Step 5: Solve for x
    x = 72,145,385,667.37/306,653.85
  6. Step 6: Final answer
    x = 235,266.53

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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.