Home / 669,917.40-1,005,005.70-196,618.20

Finding the Fourth Proportional to 669,917.40, 1,005,005.70 and 196,618.20

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Solution

The fourth proportional to 669,917.40, 1,005,005.70 and 196,618.20 is: 294,965.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,917.40 : 1,005,005.70 = 196,618.20 : x
  2. Step 2: Convert to fraction form
    669,917.40/1,005,005.70 = 196,618.20/x
  3. Step 3: Cross multiply
    669,917.40x = 1,005,005.70 × 196,618.20
  4. Step 4: Simplify right side
    669,917.40x = 197,602,411,723.74
  5. Step 5: Solve for x
    x = 197,602,411,723.74/669,917.40
  6. Step 6: Final answer
    x = 294,965.34

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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.