Home / 1,265,234.20-1,897,849.78-412,304.50

Finding the Fourth Proportional to 1,265,234.20, 1,897,849.78 and 412,304.50

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Solution

The fourth proportional to 1,265,234.20, 1,897,849.78 and 412,304.50 is: 618,456.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,234.20 : 1,897,849.78 = 412,304.50 : x
  2. Step 2: Convert to fraction form
    1,265,234.20/1,897,849.78 = 412,304.50/x
  3. Step 3: Cross multiply
    1,265,234.20x = 1,897,849.78 × 412,304.50
  4. Step 4: Simplify right side
    1,265,234.20x = 782,492,004,618.01
  5. Step 5: Solve for x
    x = 782,492,004,618.01/1,265,234.20
  6. Step 6: Final answer
    x = 618,456.25

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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.