Home / 639,918.64-883,258.52-368,016.24

Finding the Fourth Proportional to 639,918.64, 883,258.52 and 368,016.24

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Solution

The fourth proportional to 639,918.64, 883,258.52 and 368,016.24 is: 507,960.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,918.64 : 883,258.52 = 368,016.24 : x
  2. Step 2: Convert to fraction form
    639,918.64/883,258.52 = 368,016.24/x
  3. Step 3: Cross multiply
    639,918.64x = 883,258.52 × 368,016.24
  4. Step 4: Simplify right side
    639,918.64x = 325,053,479,478.37
  5. Step 5: Solve for x
    x = 325,053,479,478.37/639,918.64
  6. Step 6: Final answer
    x = 507,960.64

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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.