Home / 786,022.82-1,178,193.21-406,561.46

Finding the Fourth Proportional to 786,022.82, 1,178,193.21 and 406,561.46

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Solution

The fourth proportional to 786,022.82, 1,178,193.21 and 406,561.46 is: 609,407.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,022.82 : 1,178,193.21 = 406,561.46 : x
  2. Step 2: Convert to fraction form
    786,022.82/1,178,193.21 = 406,561.46/x
  3. Step 3: Cross multiply
    786,022.82x = 1,178,193.21 × 406,561.46
  4. Step 4: Simplify right side
    786,022.82x = 479,007,945,728.72
  5. Step 5: Solve for x
    x = 479,007,945,728.72/786,022.82
  6. Step 6: Final answer
    x = 609,407.18

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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.