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Finding the Fourth Proportional to 607,091.10, 910,891.80 and 326,280.30

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Solution

The fourth proportional to 607,091.10, 910,891.80 and 326,280.30 is: 489,557.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,091.10 : 910,891.80 = 326,280.30 : x
  2. Step 2: Convert to fraction form
    607,091.10/910,891.80 = 326,280.30/x
  3. Step 3: Cross multiply
    607,091.10x = 910,891.80 × 326,280.30
  4. Step 4: Simplify right side
    607,091.10x = 297,206,049,771.54
  5. Step 5: Solve for x
    x = 297,206,049,771.54/607,091.10
  6. Step 6: Final answer
    x = 489,557.58

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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.