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Finding the Fourth Proportional to 326,605.32, 450,737.64 and 181,428.12

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Solution

The fourth proportional to 326,605.32, 450,737.64 and 181,428.12 is: 250,383.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,605.32 : 450,737.64 = 181,428.12 : x
  2. Step 2: Convert to fraction form
    326,605.32/450,737.64 = 181,428.12/x
  3. Step 3: Cross multiply
    326,605.32x = 450,737.64 × 181,428.12
  4. Step 4: Simplify right side
    326,605.32x = 81,776,482,638.44
  5. Step 5: Solve for x
    x = 81,776,482,638.44/326,605.32
  6. Step 6: Final answer
    x = 250,383.19

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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.