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Finding the Fourth Proportional to 476,482.72, 657,297.96 and 385,940.92

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Solution

The fourth proportional to 476,482.72, 657,297.96 and 385,940.92 is: 532,397.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,482.72 : 657,297.96 = 385,940.92 : x
  2. Step 2: Convert to fraction form
    476,482.72/657,297.96 = 385,940.92/x
  3. Step 3: Cross multiply
    476,482.72x = 657,297.96 × 385,940.92
  4. Step 4: Simplify right side
    476,482.72x = 253,678,179,396.52
  5. Step 5: Solve for x
    x = 253,678,179,396.52/476,482.72
  6. Step 6: Final answer
    x = 532,397.44

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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.