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Finding the Fourth Proportional to 304,412.01, 456,775.50 and 220,861.78

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Solution

The fourth proportional to 304,412.01, 456,775.50 and 220,861.78 is: 331,406.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,412.01 : 456,775.50 = 220,861.78 : x
  2. Step 2: Convert to fraction form
    304,412.01/456,775.50 = 220,861.78/x
  3. Step 3: Cross multiply
    304,412.01x = 456,775.50 × 220,861.78
  4. Step 4: Simplify right side
    304,412.01x = 100,884,249,990.39
  5. Step 5: Solve for x
    x = 100,884,249,990.39/304,412.01
  6. Step 6: Final answer
    x = 331,406.93

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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.