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Finding the Fourth Proportional to 341,946.58, 512,461.34 and 266,136.68

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Solution

The fourth proportional to 341,946.58, 512,461.34 and 266,136.68 is: 398,848.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,946.58 : 512,461.34 = 266,136.68 : x
  2. Step 2: Convert to fraction form
    341,946.58/512,461.34 = 266,136.68/x
  3. Step 3: Cross multiply
    341,946.58x = 512,461.34 × 266,136.68
  4. Step 4: Simplify right side
    341,946.58x = 136,384,759,655.95
  5. Step 5: Solve for x
    x = 136,384,759,655.95/341,946.58
  6. Step 6: Final answer
    x = 398,848.15

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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.