Home / 943,336.80-1,415,005.20-659,901.60

Finding the Fourth Proportional to 943,336.80, 1,415,005.20 and 659,901.60

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Solution

The fourth proportional to 943,336.80, 1,415,005.20 and 659,901.60 is: 989,852.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,336.80 : 1,415,005.20 = 659,901.60 : x
  2. Step 2: Convert to fraction form
    943,336.80/1,415,005.20 = 659,901.60/x
  3. Step 3: Cross multiply
    943,336.80x = 1,415,005.20 × 659,901.60
  4. Step 4: Simplify right side
    943,336.80x = 933,764,195,488.32
  5. Step 5: Solve for x
    x = 933,764,195,488.32/943,336.80
  6. Step 6: Final answer
    x = 989,852.40

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Double scale
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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.