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Finding the Fourth Proportional to 365,085.56, 503,490.79 and 304,033.94

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Solution

The fourth proportional to 365,085.56, 503,490.79 and 304,033.94 is: 419,294.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,085.56 : 503,490.79 = 304,033.94 : x
  2. Step 2: Convert to fraction form
    365,085.56/503,490.79 = 304,033.94/x
  3. Step 3: Cross multiply
    365,085.56x = 503,490.79 × 304,033.94
  4. Step 4: Simplify right side
    365,085.56x = 153,078,286,677.90
  5. Step 5: Solve for x
    x = 153,078,286,677.90/365,085.56
  6. Step 6: Final answer
    x = 419,294.28

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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.