Home / 388,105.03-535,366.20-233,016.67

Finding the Fourth Proportional to 388,105.03, 535,366.20 and 233,016.67

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Solution

The fourth proportional to 388,105.03, 535,366.20 and 233,016.67 is: 321,431.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,105.03 : 535,366.20 = 233,016.67 : x
  2. Step 2: Convert to fraction form
    388,105.03/535,366.20 = 233,016.67/x
  3. Step 3: Cross multiply
    388,105.03x = 535,366.20 × 233,016.67
  4. Step 4: Simplify right side
    388,105.03x = 124,749,249,154.55
  5. Step 5: Solve for x
    x = 124,749,249,154.55/388,105.03
  6. Step 6: Final answer
    x = 321,431.67

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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.