Home / 649,250.12-973,979.82-199,970.84

Finding the Fourth Proportional to 649,250.12, 973,979.82 and 199,970.84

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Solution

The fourth proportional to 649,250.12, 973,979.82 and 199,970.84 is: 299,988.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,250.12 : 973,979.82 = 199,970.84 : x
  2. Step 2: Convert to fraction form
    649,250.12/973,979.82 = 199,970.84/x
  3. Step 3: Cross multiply
    649,250.12x = 973,979.82 × 199,970.84
  4. Step 4: Simplify right side
    649,250.12x = 194,767,562,748.45
  5. Step 5: Solve for x
    x = 194,767,562,748.45/649,250.12
  6. Step 6: Final answer
    x = 299,988.49

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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.