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Finding the Fourth Proportional to 594,405.64, 820,279.72 and 339,762.28

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Solution

The fourth proportional to 594,405.64, 820,279.72 and 339,762.28 is: 468,871.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    594,405.64 : 820,279.72 = 339,762.28 : x
  2. Step 2: Convert to fraction form
    594,405.64/820,279.72 = 339,762.28/x
  3. Step 3: Cross multiply
    594,405.64x = 820,279.72 × 339,762.28
  4. Step 4: Simplify right side
    594,405.64x = 278,700,107,904.96
  5. Step 5: Solve for x
    x = 278,700,107,904.96/594,405.64
  6. Step 6: Final answer
    x = 468,871.91

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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.