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Finding the Fourth Proportional to 289,556.01, 433,742.72 and 149,019.39

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Solution

The fourth proportional to 289,556.01, 433,742.72 and 149,019.39 is: 223,224.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,556.01 : 433,742.72 = 149,019.39 : x
  2. Step 2: Convert to fraction form
    289,556.01/433,742.72 = 149,019.39/x
  3. Step 3: Cross multiply
    289,556.01x = 433,742.72 × 149,019.39
  4. Step 4: Simplify right side
    289,556.01x = 64,636,074,806.24
  5. Step 5: Solve for x
    x = 64,636,074,806.24/289,556.01
  6. Step 6: Final answer
    x = 223,224.77

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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.