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Finding the Fourth Proportional to 386,561.04, 533,458.56 and 214,482.12

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Solution

The fourth proportional to 386,561.04, 533,458.56 and 214,482.12 is: 295,987.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,561.04 : 533,458.56 = 214,482.12 : x
  2. Step 2: Convert to fraction form
    386,561.04/533,458.56 = 214,482.12/x
  3. Step 3: Cross multiply
    386,561.04x = 533,458.56 × 214,482.12
  4. Step 4: Simplify right side
    386,561.04x = 114,417,322,880.95
  5. Step 5: Solve for x
    x = 114,417,322,880.95/386,561.04
  6. Step 6: Final answer
    x = 295,987.73

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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.