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Finding the Fourth Proportional to 1,948,614.40, 2,923,364.40 and 883,961.20

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Solution

The fourth proportional to 1,948,614.40, 2,923,364.40 and 883,961.20 is: 1,326,142.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948,614.40 : 2,923,364.40 = 883,961.20 : x
  2. Step 2: Convert to fraction form
    1,948,614.40/2,923,364.40 = 883,961.20/x
  3. Step 3: Cross multiply
    1,948,614.40x = 2,923,364.40 × 883,961.20
  4. Step 4: Simplify right side
    1,948,614.40x = 2,584,140,703,061.28
  5. Step 5: Solve for x
    x = 2,584,140,703,061.28/1,948,614.40
  6. Step 6: Final answer
    x = 1,326,142.67

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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.