Home / 858,666.60-1,288,639.80-327,225.60

Finding the Fourth Proportional to 858,666.60, 1,288,639.80 and 327,225.60

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Solution

The fourth proportional to 858,666.60, 1,288,639.80 and 327,225.60 is: 491,082.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,666.60 : 1,288,639.80 = 327,225.60 : x
  2. Step 2: Convert to fraction form
    858,666.60/1,288,639.80 = 327,225.60/x
  3. Step 3: Cross multiply
    858,666.60x = 1,288,639.80 × 327,225.60
  4. Step 4: Simplify right side
    858,666.60x = 421,675,931,738.88
  5. Step 5: Solve for x
    x = 421,675,931,738.88/858,666.60
  6. Step 6: Final answer
    x = 491,082.26

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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.