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Finding the Fourth Proportional to 586,395.80, 809,186.57 and 324,732.30

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Solution

The fourth proportional to 586,395.80, 809,186.57 and 324,732.30 is: 448,108.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,395.80 : 809,186.57 = 324,732.30 : x
  2. Step 2: Convert to fraction form
    586,395.80/809,186.57 = 324,732.30/x
  3. Step 3: Cross multiply
    586,395.80x = 809,186.57 × 324,732.30
  4. Step 4: Simplify right side
    586,395.80x = 262,769,016,005.21
  5. Step 5: Solve for x
    x = 262,769,016,005.21/586,395.80
  6. Step 6: Final answer
    x = 448,108.63

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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.