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Finding the Fourth Proportional to 443,314.40, 664,777.20 and 176,986.40

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Solution

The fourth proportional to 443,314.40, 664,777.20 and 176,986.40 is: 265,401.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,314.40 : 664,777.20 = 176,986.40 : x
  2. Step 2: Convert to fraction form
    443,314.40/664,777.20 = 176,986.40/x
  3. Step 3: Cross multiply
    443,314.40x = 664,777.20 × 176,986.40
  4. Step 4: Simplify right side
    443,314.40x = 117,656,523,430.08
  5. Step 5: Solve for x
    x = 117,656,523,430.08/443,314.40
  6. Step 6: Final answer
    x = 265,401.99

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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.