Home / 988,891.20-1,483,336.80-539,438.40

Finding the Fourth Proportional to 988,891.20, 1,483,336.80 and 539,438.40

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Solution

The fourth proportional to 988,891.20, 1,483,336.80 and 539,438.40 is: 809,157.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,891.20 : 1,483,336.80 = 539,438.40 : x
  2. Step 2: Convert to fraction form
    988,891.20/1,483,336.80 = 539,438.40/x
  3. Step 3: Cross multiply
    988,891.20x = 1,483,336.80 × 539,438.40
  4. Step 4: Simplify right side
    988,891.20x = 800,168,830,053.12
  5. Step 5: Solve for x
    x = 800,168,830,053.12/988,891.20
  6. Step 6: Final answer
    x = 809,157.60

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Similar ratio
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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.