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Finding the Fourth Proportional to 443,255.40, 664,688.70 and 176,927.40

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Solution

The fourth proportional to 443,255.40, 664,688.70 and 176,927.40 is: 265,313.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,255.40 : 664,688.70 = 176,927.40 : x
  2. Step 2: Convert to fraction form
    443,255.40/664,688.70 = 176,927.40/x
  3. Step 3: Cross multiply
    443,255.40x = 664,688.70 × 176,927.40
  4. Step 4: Simplify right side
    443,255.40x = 117,601,643,500.38
  5. Step 5: Solve for x
    x = 117,601,643,500.38/443,255.40
  6. Step 6: Final answer
    x = 265,313.50

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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.