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Finding the Fourth Proportional to 371,429.42, 512,585.01 and 208,092.98

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Solution

The fourth proportional to 371,429.42, 512,585.01 and 208,092.98 is: 287,175.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,429.42 : 512,585.01 = 208,092.98 : x
  2. Step 2: Convert to fraction form
    371,429.42/512,585.01 = 208,092.98/x
  3. Step 3: Cross multiply
    371,429.42x = 512,585.01 × 208,092.98
  4. Step 4: Simplify right side
    371,429.42x = 106,665,343,515.69
  5. Step 5: Solve for x
    x = 106,665,343,515.69/371,429.42
  6. Step 6: Final answer
    x = 287,175.27

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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.