Home / 809,152.34-1,115,999.26-518,791.64

Finding the Fourth Proportional to 809,152.34, 1,115,999.26 and 518,791.64

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Solution

The fourth proportional to 809,152.34, 1,115,999.26 and 518,791.64 is: 715,527.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,152.34 : 1,115,999.26 = 518,791.64 : x
  2. Step 2: Convert to fraction form
    809,152.34/1,115,999.26 = 518,791.64/x
  3. Step 3: Cross multiply
    809,152.34x = 1,115,999.26 × 518,791.64
  4. Step 4: Simplify right side
    809,152.34x = 578,971,087,827.21
  5. Step 5: Solve for x
    x = 578,971,087,827.21/809,152.34
  6. Step 6: Final answer
    x = 715,527.91

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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.