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Finding the Fourth Proportional to 443,880.32, 612,559.32 and 239,935.19

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Solution

The fourth proportional to 443,880.32, 612,559.32 and 239,935.19 is: 331,112.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,880.32 : 612,559.32 = 239,935.19 : x
  2. Step 2: Convert to fraction form
    443,880.32/612,559.32 = 239,935.19/x
  3. Step 3: Cross multiply
    443,880.32x = 612,559.32 × 239,935.19
  4. Step 4: Simplify right side
    443,880.32x = 146,974,536,830.47
  5. Step 5: Solve for x
    x = 146,974,536,830.47/443,880.32
  6. Step 6: Final answer
    x = 331,112.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.