Home / 949,778.32-1,310,636.28-520,063.60

Finding the Fourth Proportional to 949,778.32, 1,310,636.28 and 520,063.60

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Solution

The fourth proportional to 949,778.32, 1,310,636.28 and 520,063.60 is: 717,656.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,778.32 : 1,310,636.28 = 520,063.60 : x
  2. Step 2: Convert to fraction form
    949,778.32/1,310,636.28 = 520,063.60/x
  3. Step 3: Cross multiply
    949,778.32x = 1,310,636.28 × 520,063.60
  4. Step 4: Simplify right side
    949,778.32x = 681,614,222,067.41
  5. Step 5: Solve for x
    x = 681,614,222,067.41/949,778.32
  6. Step 6: Final answer
    x = 717,656.12

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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.