Home / 649,048.40-973,399.80-199,768.40

Finding the Fourth Proportional to 649,048.40, 973,399.80 and 199,768.40

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Solution

The fourth proportional to 649,048.40, 973,399.80 and 199,768.40 is: 299,599.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,048.40 : 973,399.80 = 199,768.40 : x
  2. Step 2: Convert to fraction form
    649,048.40/973,399.80 = 199,768.40/x
  3. Step 3: Cross multiply
    649,048.40x = 973,399.80 × 199,768.40
  4. Step 4: Simplify right side
    649,048.40x = 194,454,520,606.32
  5. Step 5: Solve for x
    x = 194,454,520,606.32/649,048.40
  6. Step 6: Final answer
    x = 299,599.41

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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.