Home / 718,223.44-991,055.12-412,313.18

Finding the Fourth Proportional to 718,223.44, 991,055.12 and 412,313.18

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Solution

The fourth proportional to 718,223.44, 991,055.12 and 412,313.18 is: 568,938.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,223.44 : 991,055.12 = 412,313.18 : x
  2. Step 2: Convert to fraction form
    718,223.44/991,055.12 = 412,313.18/x
  3. Step 3: Cross multiply
    718,223.44x = 991,055.12 × 412,313.18
  4. Step 4: Simplify right side
    718,223.44x = 408,625,088,082.48
  5. Step 5: Solve for x
    x = 408,625,088,082.48/718,223.44
  6. Step 6: Final answer
    x = 568,938.67

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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.