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Finding the Fourth Proportional to 351,421.16, 484,961.43 and 190,276.32

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Solution

The fourth proportional to 351,421.16, 484,961.43 and 190,276.32 is: 262,581.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,421.16 : 484,961.43 = 190,276.32 : x
  2. Step 2: Convert to fraction form
    351,421.16/484,961.43 = 190,276.32/x
  3. Step 3: Cross multiply
    351,421.16x = 484,961.43 × 190,276.32
  4. Step 4: Simplify right side
    351,421.16x = 92,276,673,710.20
  5. Step 5: Solve for x
    x = 92,276,673,710.20/351,421.16
  6. Step 6: Final answer
    x = 262,581.44

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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.