Home / 639,563.32-882,712.92-381,456.82

Finding the Fourth Proportional to 639,563.32, 882,712.92 and 381,456.82

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Solution

The fourth proportional to 639,563.32, 882,712.92 and 381,456.82 is: 526,479.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,563.32 : 882,712.92 = 381,456.82 : x
  2. Step 2: Convert to fraction form
    639,563.32/882,712.92 = 381,456.82/x
  3. Step 3: Cross multiply
    639,563.32x = 882,712.92 × 381,456.82
  4. Step 4: Simplify right side
    639,563.32x = 336,716,863,436.11
  5. Step 5: Solve for x
    x = 336,716,863,436.11/639,563.32
  6. Step 6: Final answer
    x = 526,479.32

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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.