Home / 786,021.32-1,178,190.97-406,559.96

Finding the Fourth Proportional to 786,021.32, 1,178,190.97 and 406,559.96

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Solution

The fourth proportional to 786,021.32, 1,178,190.97 and 406,559.96 is: 609,404.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,021.32 : 1,178,190.97 = 406,559.96 : x
  2. Step 2: Convert to fraction form
    786,021.32/1,178,190.97 = 406,559.96/x
  3. Step 3: Cross multiply
    786,021.32x = 1,178,190.97 × 406,559.96
  4. Step 4: Simplify right side
    786,021.32x = 479,005,271,146.42
  5. Step 5: Solve for x
    x = 479,005,271,146.42/786,021.32
  6. Step 6: Final answer
    x = 609,404.94

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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.