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Finding the Fourth Proportional to 746,661.60, 1,119,891.60 and 297,712.80

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Solution

The fourth proportional to 746,661.60, 1,119,891.60 and 297,712.80 is: 446,529.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,661.60 : 1,119,891.60 = 297,712.80 : x
  2. Step 2: Convert to fraction form
    746,661.60/1,119,891.60 = 297,712.80/x
  3. Step 3: Cross multiply
    746,661.60x = 1,119,891.60 × 297,712.80
  4. Step 4: Simplify right side
    746,661.60x = 333,406,063,932.48
  5. Step 5: Solve for x
    x = 333,406,063,932.48/746,661.60
  6. Step 6: Final answer
    x = 446,529.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.