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Finding the Fourth Proportional to 395,527.78, 545,925.99 and 225,860.32

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Solution

The fourth proportional to 395,527.78, 545,925.99 and 225,860.32 is: 311,743.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,527.78 : 545,925.99 = 225,860.32 : x
  2. Step 2: Convert to fraction form
    395,527.78/545,925.99 = 225,860.32/x
  3. Step 3: Cross multiply
    395,527.78x = 545,925.99 × 225,860.32
  4. Step 4: Simplify right side
    395,527.78x = 123,303,018,797.72
  5. Step 5: Solve for x
    x = 123,303,018,797.72/395,527.78
  6. Step 6: Final answer
    x = 311,743.01

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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.