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Finding the Fourth Proportional to 351,688.83, 485,326.75 and 190,534.26

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Solution

The fourth proportional to 351,688.83, 485,326.75 and 190,534.26 is: 262,935.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,688.83 : 485,326.75 = 190,534.26 : x
  2. Step 2: Convert to fraction form
    351,688.83/485,326.75 = 190,534.26/x
  3. Step 3: Cross multiply
    351,688.83x = 485,326.75 × 190,534.26
  4. Step 4: Simplify right side
    351,688.83x = 92,471,373,169.46
  5. Step 5: Solve for x
    x = 92,471,373,169.46/351,688.83
  6. Step 6: Final answer
    x = 262,935.20

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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.