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Finding the Fourth Proportional to 484,695.16, 668,443.86 and 303,423.60

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Solution

The fourth proportional to 484,695.16, 668,443.86 and 303,423.60 is: 418,451.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,695.16 : 668,443.86 = 303,423.60 : x
  2. Step 2: Convert to fraction form
    484,695.16/668,443.86 = 303,423.60/x
  3. Step 3: Cross multiply
    484,695.16x = 668,443.86 × 303,423.60
  4. Step 4: Simplify right side
    484,695.16x = 202,821,642,399.10
  5. Step 5: Solve for x
    x = 202,821,642,399.10/484,695.16
  6. Step 6: Final answer
    x = 418,451.97

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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.