Home / 643,590.37-965,541.58-194,284.38

Finding the Fourth Proportional to 643,590.37, 965,541.58 and 194,284.38

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Solution

The fourth proportional to 643,590.37, 965,541.58 and 194,284.38 is: 291,473.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,590.37 : 965,541.58 = 194,284.38 : x
  2. Step 2: Convert to fraction form
    643,590.37/965,541.58 = 194,284.38/x
  3. Step 3: Cross multiply
    643,590.37x = 965,541.58 × 194,284.38
  4. Step 4: Simplify right side
    643,590.37x = 187,589,646,748.81
  5. Step 5: Solve for x
    x = 187,589,646,748.81/643,590.37
  6. Step 6: Final answer
    x = 291,473.67

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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.