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Finding the Fourth Proportional to 434,690.97, 599,651.15 and 289,746.33

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Solution

The fourth proportional to 434,690.97, 599,651.15 and 289,746.33 is: 399,701.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,690.97 : 599,651.15 = 289,746.33 : x
  2. Step 2: Convert to fraction form
    434,690.97/599,651.15 = 289,746.33/x
  3. Step 3: Cross multiply
    434,690.97x = 599,651.15 × 289,746.33
  4. Step 4: Simplify right side
    434,690.97x = 173,746,718,544.05
  5. Step 5: Solve for x
    x = 173,746,718,544.05/434,690.97
  6. Step 6: Final answer
    x = 399,701.70

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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.