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Finding the Fourth Proportional to 456,669.30, 630,456.99 and 275,426.94

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Solution

The fourth proportional to 456,669.30, 630,456.99 and 275,426.94 is: 380,241.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,669.30 : 630,456.99 = 275,426.94 : x
  2. Step 2: Convert to fraction form
    456,669.30/630,456.99 = 275,426.94/x
  3. Step 3: Cross multiply
    456,669.30x = 630,456.99 × 275,426.94
  4. Step 4: Simplify right side
    456,669.30x = 173,644,839,557.31
  5. Step 5: Solve for x
    x = 173,644,839,557.31/456,669.30
  6. Step 6: Final answer
    x = 380,241.98

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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.