Home / 939,857.87-1,407,890.45-433,715.60

Finding the Fourth Proportional to 939,857.87, 1,407,890.45 and 433,715.60

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Solution

The fourth proportional to 939,857.87, 1,407,890.45 and 433,715.60 is: 649,698.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,857.87 : 1,407,890.45 = 433,715.60 : x
  2. Step 2: Convert to fraction form
    939,857.87/1,407,890.45 = 433,715.60/x
  3. Step 3: Cross multiply
    939,857.87x = 1,407,890.45 × 433,715.60
  4. Step 4: Simplify right side
    939,857.87x = 610,624,042,047.99
  5. Step 5: Solve for x
    x = 610,624,042,047.99/939,857.87
  6. Step 6: Final answer
    x = 649,698.28

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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.