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Finding the Fourth Proportional to 492,504.23, 679,655.79 and 277,644.30

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Solution

The fourth proportional to 492,504.23, 679,655.79 and 277,644.30 is: 383,149.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,504.23 : 679,655.79 = 277,644.30 : x
  2. Step 2: Convert to fraction form
    492,504.23/679,655.79 = 277,644.30/x
  3. Step 3: Cross multiply
    492,504.23x = 679,655.79 × 277,644.30
  4. Step 4: Simplify right side
    492,504.23x = 188,702,556,055.50
  5. Step 5: Solve for x
    x = 188,702,556,055.50/492,504.23
  6. Step 6: Final answer
    x = 383,149.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.