Home / 380,631.76-571,301.88-193,783.12

Finding the Fourth Proportional to 380,631.76, 571,301.88 and 193,783.12

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Solution

The fourth proportional to 380,631.76, 571,301.88 and 193,783.12 is: 290,855.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,631.76 : 571,301.88 = 193,783.12 : x
  2. Step 2: Convert to fraction form
    380,631.76/571,301.88 = 193,783.12/x
  3. Step 3: Cross multiply
    380,631.76x = 571,301.88 × 193,783.12
  4. Step 4: Simplify right side
    380,631.76x = 110,708,660,768.27
  5. Step 5: Solve for x
    x = 110,708,660,768.27/380,631.76
  6. Step 6: Final answer
    x = 290,855.03

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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.