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Finding the Fourth Proportional to 672,569.77, 928,138.61 and 366,639.41

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Solution

The fourth proportional to 672,569.77, 928,138.61 and 366,639.41 is: 505,958.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,569.77 : 928,138.61 = 366,639.41 : x
  2. Step 2: Convert to fraction form
    672,569.77/928,138.61 = 366,639.41/x
  3. Step 3: Cross multiply
    672,569.77x = 928,138.61 × 366,639.41
  4. Step 4: Simplify right side
    672,569.77x = 340,292,192,368.62
  5. Step 5: Solve for x
    x = 340,292,192,368.62/672,569.77
  6. Step 6: Final answer
    x = 505,958.20

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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.