Home / 306,259.34-458,921.22-128,669.26

Finding the Fourth Proportional to 306,259.34, 458,921.22 and 128,669.26

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Solution

The fourth proportional to 306,259.34, 458,921.22 and 128,669.26 is: 192,807.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,259.34 : 458,921.22 = 128,669.26 : x
  2. Step 2: Convert to fraction form
    306,259.34/458,921.22 = 128,669.26/x
  3. Step 3: Cross multiply
    306,259.34x = 458,921.22 × 128,669.26
  4. Step 4: Simplify right side
    306,259.34x = 59,049,053,775.70
  5. Step 5: Solve for x
    x = 59,049,053,775.70/306,259.34
  6. Step 6: Final answer
    x = 192,807.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.