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Finding the Fourth Proportional to 289,874.44, 400,040.40 and 181,043.38

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Solution

The fourth proportional to 289,874.44, 400,040.40 and 181,043.38 is: 249,848.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,874.44 : 400,040.40 = 181,043.38 : x
  2. Step 2: Convert to fraction form
    289,874.44/400,040.40 = 181,043.38/x
  3. Step 3: Cross multiply
    289,874.44x = 400,040.40 × 181,043.38
  4. Step 4: Simplify right side
    289,874.44x = 72,424,666,152.55
  5. Step 5: Solve for x
    x = 72,424,666,152.55/289,874.44
  6. Step 6: Final answer
    x = 249,848.40

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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.