Home / 947,139.42-1,419,823.38-347,939.70

Finding the Fourth Proportional to 947,139.42, 1,419,823.38 and 347,939.70

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Solution

The fourth proportional to 947,139.42, 1,419,823.38 and 347,939.70 is: 521,584.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,139.42 : 1,419,823.38 = 347,939.70 : x
  2. Step 2: Convert to fraction form
    947,139.42/1,419,823.38 = 347,939.70/x
  3. Step 3: Cross multiply
    947,139.42x = 1,419,823.38 × 347,939.70
  4. Step 4: Simplify right side
    947,139.42x = 494,012,920,890.19
  5. Step 5: Solve for x
    x = 494,012,920,890.19/947,139.42
  6. Step 6: Final answer
    x = 521,584.16

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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.