Home / 388,284.08-535,906.32-235,405.60

Finding the Fourth Proportional to 388,284.08, 535,906.32 and 235,405.60

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Solution

The fourth proportional to 388,284.08, 535,906.32 and 235,405.60 is: 324,904.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,284.08 : 535,906.32 = 235,405.60 : x
  2. Step 2: Convert to fraction form
    388,284.08/535,906.32 = 235,405.60/x
  3. Step 3: Cross multiply
    388,284.08x = 535,906.32 × 235,405.60
  4. Step 4: Simplify right side
    388,284.08x = 126,155,348,803.39
  5. Step 5: Solve for x
    x = 126,155,348,803.39/388,284.08
  6. Step 6: Final answer
    x = 324,904.77

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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.