Home / 395,300.55-545,530.29-223,254.73

Finding the Fourth Proportional to 395,300.55, 545,530.29 and 223,254.73

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Solution

The fourth proportional to 395,300.55, 545,530.29 and 223,254.73 is: 308,100.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,300.55 : 545,530.29 = 223,254.73 : x
  2. Step 2: Convert to fraction form
    395,300.55/545,530.29 = 223,254.73/x
  3. Step 3: Cross multiply
    395,300.55x = 545,530.29 × 223,254.73
  4. Step 4: Simplify right side
    395,300.55x = 121,792,218,701.29
  5. Step 5: Solve for x
    x = 121,792,218,701.29/395,300.55
  6. Step 6: Final answer
    x = 308,100.30

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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.