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Finding the Fourth Proportional to 515,196.99, 773,271.09 and 371,252.25

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Solution

The fourth proportional to 515,196.99, 773,271.09 and 371,252.25 is: 557,221.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,196.99 : 773,271.09 = 371,252.25 : x
  2. Step 2: Convert to fraction form
    515,196.99/773,271.09 = 371,252.25/x
  3. Step 3: Cross multiply
    515,196.99x = 773,271.09 × 371,252.25
  4. Step 4: Simplify right side
    515,196.99x = 287,078,632,022.45
  5. Step 5: Solve for x
    x = 287,078,632,022.45/515,196.99
  6. Step 6: Final answer
    x = 557,221.10

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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.