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Finding the Fourth Proportional to 356,225.72, 533,646.82 and 318,369.56

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Solution

The fourth proportional to 356,225.72, 533,646.82 and 318,369.56 is: 476,936.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,225.72 : 533,646.82 = 318,369.56 : x
  2. Step 2: Convert to fraction form
    356,225.72/533,646.82 = 318,369.56/x
  3. Step 3: Cross multiply
    356,225.72x = 533,646.82 × 318,369.56
  4. Step 4: Simplify right side
    356,225.72x = 169,896,903,278.80
  5. Step 5: Solve for x
    x = 169,896,903,278.80/356,225.72
  6. Step 6: Final answer
    x = 476,936.09

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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.