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Finding the Fourth Proportional to 410,626.80, 615,940.20 and 297,777.60

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Solution

The fourth proportional to 410,626.80, 615,940.20 and 297,777.60 is: 446,666.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,626.80 : 615,940.20 = 297,777.60 : x
  2. Step 2: Convert to fraction form
    410,626.80/615,940.20 = 297,777.60/x
  3. Step 3: Cross multiply
    410,626.80x = 615,940.20 × 297,777.60
  4. Step 4: Simplify right side
    410,626.80x = 183,413,194,499.52
  5. Step 5: Solve for x
    x = 183,413,194,499.52/410,626.80
  6. Step 6: Final answer
    x = 446,666.40

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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.