Home / 386,769.68-533,750.28-217,015.28

Finding the Fourth Proportional to 386,769.68, 533,750.28 and 217,015.28

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Solution

The fourth proportional to 386,769.68, 533,750.28 and 217,015.28 is: 299,485.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,769.68 : 533,750.28 = 217,015.28 : x
  2. Step 2: Convert to fraction form
    386,769.68/533,750.28 = 217,015.28/x
  3. Step 3: Cross multiply
    386,769.68x = 533,750.28 × 217,015.28
  4. Step 4: Simplify right side
    386,769.68x = 115,831,966,464.28
  5. Step 5: Solve for x
    x = 115,831,966,464.28/386,769.68
  6. Step 6: Final answer
    x = 299,485.64

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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.