Home / 699,246.80-1,048,870.20-620,514.80

Finding the Fourth Proportional to 699,246.80, 1,048,870.20 and 620,514.80

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Solution

The fourth proportional to 699,246.80, 1,048,870.20 and 620,514.80 is: 930,772.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,246.80 : 1,048,870.20 = 620,514.80 : x
  2. Step 2: Convert to fraction form
    699,246.80/1,048,870.20 = 620,514.80/x
  3. Step 3: Cross multiply
    699,246.80x = 1,048,870.20 × 620,514.80
  4. Step 4: Simplify right side
    699,246.80x = 650,839,482,378.96
  5. Step 5: Solve for x
    x = 650,839,482,378.96/699,246.80
  6. Step 6: Final answer
    x = 930,772.20

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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.