Home / 433,438.20-649,898.10-223,486.20

Finding the Fourth Proportional to 433,438.20, 649,898.10 and 223,486.20

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Solution

The fourth proportional to 433,438.20, 649,898.10 and 223,486.20 is: 335,095.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,438.20 : 649,898.10 = 223,486.20 : x
  2. Step 2: Convert to fraction form
    433,438.20/649,898.10 = 223,486.20/x
  3. Step 3: Cross multiply
    433,438.20x = 649,898.10 × 223,486.20
  4. Step 4: Simplify right side
    433,438.20x = 145,243,256,756.22
  5. Step 5: Solve for x
    x = 145,243,256,756.22/433,438.20
  6. Step 6: Final answer
    x = 335,095.65

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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.