Home / 971,138.40-1,457,053.20-936,578.40

Finding the Fourth Proportional to 971,138.40, 1,457,053.20 and 936,578.40

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Solution

The fourth proportional to 971,138.40, 1,457,053.20 and 936,578.40 is: 1,405,200.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,138.40 : 1,457,053.20 = 936,578.40 : x
  2. Step 2: Convert to fraction form
    971,138.40/1,457,053.20 = 936,578.40/x
  3. Step 3: Cross multiply
    971,138.40x = 1,457,053.20 × 936,578.40
  4. Step 4: Simplify right side
    971,138.40x = 1,364,644,554,770.88
  5. Step 5: Solve for x
    x = 1,364,644,554,770.88/971,138.40
  6. Step 6: Final answer
    x = 1,405,200.90

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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.