Home / 786,157.68-1,179,693.72-330,715.56

Finding the Fourth Proportional to 786,157.68, 1,179,693.72 and 330,715.56

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Solution

The fourth proportional to 786,157.68, 1,179,693.72 and 330,715.56 is: 496,265.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,157.68 : 1,179,693.72 = 330,715.56 : x
  2. Step 2: Convert to fraction form
    786,157.68/1,179,693.72 = 330,715.56/x
  3. Step 3: Cross multiply
    786,157.68x = 1,179,693.72 × 330,715.56
  4. Step 4: Simplify right side
    786,157.68x = 390,143,069,238.28
  5. Step 5: Solve for x
    x = 390,143,069,238.28/786,157.68
  6. Step 6: Final answer
    x = 496,265.67

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Double scale
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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.