Home / 878,145.64-1,211,833.38-475,736.68

Finding the Fourth Proportional to 878,145.64, 1,211,833.38 and 475,736.68

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Solution

The fourth proportional to 878,145.64, 1,211,833.38 and 475,736.68 is: 656,512.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,145.64 : 1,211,833.38 = 475,736.68 : x
  2. Step 2: Convert to fraction form
    878,145.64/1,211,833.38 = 475,736.68/x
  3. Step 3: Cross multiply
    878,145.64x = 1,211,833.38 × 475,736.68
  4. Step 4: Simplify right side
    878,145.64x = 576,513,588,914.38
  5. Step 5: Solve for x
    x = 576,513,588,914.38/878,145.64
  6. Step 6: Final answer
    x = 656,512.50

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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.