Home / 985,930.20-1,478,312.10-513,538.20

Finding the Fourth Proportional to 985,930.20, 1,478,312.10 and 513,538.20

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Solution

The fourth proportional to 985,930.20, 1,478,312.10 and 513,538.20 is: 770,003.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,930.20 : 1,478,312.10 = 513,538.20 : x
  2. Step 2: Convert to fraction form
    985,930.20/1,478,312.10 = 513,538.20/x
  3. Step 3: Cross multiply
    985,930.20x = 1,478,312.10 × 513,538.20
  4. Step 4: Simplify right side
    985,930.20x = 759,169,734,872.22
  5. Step 5: Solve for x
    x = 759,169,734,872.22/985,930.20
  6. Step 6: Final answer
    x = 770,003.53

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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.