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Finding the Fourth Proportional to 360,442.08, 540,821.28 and 171,039.42

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Solution

The fourth proportional to 360,442.08, 540,821.28 and 171,039.42 is: 256,634.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,442.08 : 540,821.28 = 171,039.42 : x
  2. Step 2: Convert to fraction form
    360,442.08/540,821.28 = 171,039.42/x
  3. Step 3: Cross multiply
    360,442.08x = 540,821.28 × 171,039.42
  4. Step 4: Simplify right side
    360,442.08x = 92,501,758,054.86
  5. Step 5: Solve for x
    x = 92,501,758,054.86/360,442.08
  6. Step 6: Final answer
    x = 256,634.18

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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.