Home / 919,662.45-1,269,244.68-557,075.67

Finding the Fourth Proportional to 919,662.45, 1,269,244.68 and 557,075.67

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Solution

The fourth proportional to 919,662.45, 1,269,244.68 and 557,075.67 is: 768,831.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,662.45 : 1,269,244.68 = 557,075.67 : x
  2. Step 2: Convert to fraction form
    919,662.45/1,269,244.68 = 557,075.67/x
  3. Step 3: Cross multiply
    919,662.45x = 1,269,244.68 × 557,075.67
  4. Step 4: Simplify right side
    919,662.45x = 707,065,330,504.94
  5. Step 5: Solve for x
    x = 707,065,330,504.94/919,662.45
  6. Step 6: Final answer
    x = 768,831.36

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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.