Home / 235,439.33-324,904.64-128,009.39

Finding the Fourth Proportional to 235,439.33, 324,904.64 and 128,009.39

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Solution

The fourth proportional to 235,439.33, 324,904.64 and 128,009.39 is: 176,652.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,439.33 : 324,904.64 = 128,009.39 : x
  2. Step 2: Convert to fraction form
    235,439.33/324,904.64 = 128,009.39/x
  3. Step 3: Cross multiply
    235,439.33x = 324,904.64 × 128,009.39
  4. Step 4: Simplify right side
    235,439.33x = 41,590,844,946.78
  5. Step 5: Solve for x
    x = 41,590,844,946.78/235,439.33
  6. Step 6: Final answer
    x = 176,652.07

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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.