Home / 1,188,180-1,639,792.08-651,739.68

Finding the Fourth Proportional to 1,188,180, 1,639,792.08 and 651,739.68

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Solution

The fourth proportional to 1,188,180, 1,639,792.08 and 651,739.68 is: 899,457.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,180 : 1,639,792.08 = 651,739.68 : x
  2. Step 2: Convert to fraction form
    1,188,180/1,639,792.08 = 651,739.68/x
  3. Step 3: Cross multiply
    1,188,180x = 1,639,792.08 × 651,739.68
  4. Step 4: Simplify right side
    1,188,180x = 1,068,717,565,485.73
  5. Step 5: Solve for x
    x = 1,068,717,565,485.73/1,188,180
  6. Step 6: Final answer
    x = 899,457.63

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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.