Home / 1,221,769.20-1,833,528.60-512,306.40

Finding the Fourth Proportional to 1,221,769.20, 1,833,528.60 and 512,306.40

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Solution

The fourth proportional to 1,221,769.20, 1,833,528.60 and 512,306.40 is: 768,826.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,769.20 : 1,833,528.60 = 512,306.40 : x
  2. Step 2: Convert to fraction form
    1,221,769.20/1,833,528.60 = 512,306.40/x
  3. Step 3: Cross multiply
    1,221,769.20x = 1,833,528.60 × 512,306.40
  4. Step 4: Simplify right side
    1,221,769.20x = 939,328,436,363.04
  5. Step 5: Solve for x
    x = 939,328,436,363.04/1,221,769.20
  6. Step 6: Final answer
    x = 768,826.42

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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.