Home / 864,836.18-1,297,254.19-438,305.57

Finding the Fourth Proportional to 864,836.18, 1,297,254.19 and 438,305.57

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Solution

The fourth proportional to 864,836.18, 1,297,254.19 and 438,305.57 is: 657,458.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,836.18 : 1,297,254.19 = 438,305.57 : x
  2. Step 2: Convert to fraction form
    864,836.18/1,297,254.19 = 438,305.57/x
  3. Step 3: Cross multiply
    864,836.18x = 1,297,254.19 × 438,305.57
  4. Step 4: Simplify right side
    864,836.18x = 568,593,730,696.57
  5. Step 5: Solve for x
    x = 568,593,730,696.57/864,836.18
  6. Step 6: Final answer
    x = 657,458.31

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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.