Home / 325,386.18-449,019.45-189,423.63

Finding the Fourth Proportional to 325,386.18, 449,019.45 and 189,423.63

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Solution

The fourth proportional to 325,386.18, 449,019.45 and 189,423.63 is: 261,396.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,386.18 : 449,019.45 = 189,423.63 : x
  2. Step 2: Convert to fraction form
    325,386.18/449,019.45 = 189,423.63/x
  3. Step 3: Cross multiply
    325,386.18x = 449,019.45 × 189,423.63
  4. Step 4: Simplify right side
    325,386.18x = 85,054,894,159.60
  5. Step 5: Solve for x
    x = 85,054,894,159.60/325,386.18
  6. Step 6: Final answer
    x = 261,396.76

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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.