Home / 669,784.40-1,004,806.20-196,485.20

Finding the Fourth Proportional to 669,784.40, 1,004,806.20 and 196,485.20

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Solution

The fourth proportional to 669,784.40, 1,004,806.20 and 196,485.20 is: 294,765.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,784.40 : 1,004,806.20 = 196,485.20 : x
  2. Step 2: Convert to fraction form
    669,784.40/1,004,806.20 = 196,485.20/x
  3. Step 3: Cross multiply
    669,784.40x = 1,004,806.20 × 196,485.20
  4. Step 4: Simplify right side
    669,784.40x = 197,429,547,168.24
  5. Step 5: Solve for x
    x = 197,429,547,168.24/669,784.40
  6. Step 6: Final answer
    x = 294,765.82

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Double scale
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Similar ratio
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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.