Home / 919,457.32-1,379,172.14-413,661.12

Finding the Fourth Proportional to 919,457.32, 1,379,172.14 and 413,661.12

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Solution

The fourth proportional to 919,457.32, 1,379,172.14 and 413,661.12 is: 620,485.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,457.32 : 1,379,172.14 = 413,661.12 : x
  2. Step 2: Convert to fraction form
    919,457.32/1,379,172.14 = 413,661.12/x
  3. Step 3: Cross multiply
    919,457.32x = 1,379,172.14 × 413,661.12
  4. Step 4: Simplify right side
    919,457.32x = 570,509,892,105.20
  5. Step 5: Solve for x
    x = 570,509,892,105.20/919,457.32
  6. Step 6: Final answer
    x = 620,485.45

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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.