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Finding the Fourth Proportional to 334,611.20, 501,916.80 and 307,654.40

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Solution

The fourth proportional to 334,611.20, 501,916.80 and 307,654.40 is: 461,481.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,611.20 : 501,916.80 = 307,654.40 : x
  2. Step 2: Convert to fraction form
    334,611.20/501,916.80 = 307,654.40/x
  3. Step 3: Cross multiply
    334,611.20x = 501,916.80 × 307,654.40
  4. Step 4: Simplify right side
    334,611.20x = 154,416,911,953.92
  5. Step 5: Solve for x
    x = 154,416,911,953.92/334,611.20
  6. Step 6: Final answer
    x = 461,481.60

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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.