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Finding the Fourth Proportional to 503,689.18, 695,140.11 and 376,143.34

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Solution

The fourth proportional to 503,689.18, 695,140.11 and 376,143.34 is: 519,114.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,689.18 : 695,140.11 = 376,143.34 : x
  2. Step 2: Convert to fraction form
    503,689.18/695,140.11 = 376,143.34/x
  3. Step 3: Cross multiply
    503,689.18x = 695,140.11 × 376,143.34
  4. Step 4: Simplify right side
    503,689.18x = 261,472,322,743.37
  5. Step 5: Solve for x
    x = 261,472,322,743.37/503,689.18
  6. Step 6: Final answer
    x = 519,114.43

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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.