Home / 306,913.28-423,561.54-186,059.66

Finding the Fourth Proportional to 306,913.28, 423,561.54 and 186,059.66

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Solution

The fourth proportional to 306,913.28, 423,561.54 and 186,059.66 is: 256,775.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,913.28 : 423,561.54 = 186,059.66 : x
  2. Step 2: Convert to fraction form
    306,913.28/423,561.54 = 186,059.66/x
  3. Step 3: Cross multiply
    306,913.28x = 423,561.54 × 186,059.66
  4. Step 4: Simplify right side
    306,913.28x = 78,807,714,003.67
  5. Step 5: Solve for x
    x = 78,807,714,003.67/306,913.28
  6. Step 6: Final answer
    x = 256,775.19

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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.