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Finding the Fourth Proportional to 307,953.60, 461,930.40 and 223,316.70

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Solution

The fourth proportional to 307,953.60, 461,930.40 and 223,316.70 is: 334,975.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,953.60 : 461,930.40 = 223,316.70 : x
  2. Step 2: Convert to fraction form
    307,953.60/461,930.40 = 223,316.70/x
  3. Step 3: Cross multiply
    307,953.60x = 461,930.40 × 223,316.70
  4. Step 4: Simplify right side
    307,953.60x = 103,156,772,557.68
  5. Step 5: Solve for x
    x = 103,156,772,557.68/307,953.60
  6. Step 6: Final answer
    x = 334,975.05

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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.