Home / 356,128.48-491,438.64-194,952.67

Finding the Fourth Proportional to 356,128.48, 491,438.64 and 194,952.67

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Solution

The fourth proportional to 356,128.48, 491,438.64 and 194,952.67 is: 269,024.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,128.48 : 491,438.64 = 194,952.67 : x
  2. Step 2: Convert to fraction form
    356,128.48/491,438.64 = 194,952.67/x
  3. Step 3: Cross multiply
    356,128.48x = 491,438.64 × 194,952.67
  4. Step 4: Simplify right side
    356,128.48x = 95,807,275,009.17
  5. Step 5: Solve for x
    x = 95,807,275,009.17/356,128.48
  6. Step 6: Final answer
    x = 269,024.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.