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Finding the Fourth Proportional to 503,068.28, 694,233.71 and 288,209.19

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Solution

The fourth proportional to 503,068.28, 694,233.71 and 288,209.19 is: 397,728.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,068.28 : 694,233.71 = 288,209.19 : x
  2. Step 2: Convert to fraction form
    503,068.28/694,233.71 = 288,209.19/x
  3. Step 3: Cross multiply
    503,068.28x = 694,233.71 × 288,209.19
  4. Step 4: Simplify right side
    503,068.28x = 200,084,535,950.32
  5. Step 5: Solve for x
    x = 200,084,535,950.32/503,068.28
  6. Step 6: Final answer
    x = 397,728.39

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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.