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Finding the Fourth Proportional to 385,653.76, 576,269.76 and 293,961.76

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Solution

The fourth proportional to 385,653.76, 576,269.76 and 293,961.76 is: 439,257.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,653.76 : 576,269.76 = 293,961.76 : x
  2. Step 2: Convert to fraction form
    385,653.76/576,269.76 = 293,961.76/x
  3. Step 3: Cross multiply
    385,653.76x = 576,269.76 × 293,961.76
  4. Step 4: Simplify right side
    385,653.76x = 169,401,272,884.38
  5. Step 5: Solve for x
    x = 169,401,272,884.38/385,653.76
  6. Step 6: Final answer
    x = 439,257.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.