Home / 1,289,417.20-1,933,445.40-436,195.60

Finding the Fourth Proportional to 1,289,417.20, 1,933,445.40 and 436,195.60

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Solution

The fourth proportional to 1,289,417.20, 1,933,445.40 and 436,195.60 is: 654,063.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,417.20 : 1,933,445.40 = 436,195.60 : x
  2. Step 2: Convert to fraction form
    1,289,417.20/1,933,445.40 = 436,195.60/x
  3. Step 3: Cross multiply
    1,289,417.20x = 1,933,445.40 × 436,195.60
  4. Step 4: Simplify right side
    1,289,417.20x = 843,360,376,320.24
  5. Step 5: Solve for x
    x = 843,360,376,320.24/1,289,417.20
  6. Step 6: Final answer
    x = 654,063.23

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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.