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Finding the Fourth Proportional to 594,424.53, 820,305.72 and 339,781.20

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Solution

The fourth proportional to 594,424.53, 820,305.72 and 339,781.20 is: 468,897.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    594,424.53 : 820,305.72 = 339,781.20 : x
  2. Step 2: Convert to fraction form
    594,424.53/820,305.72 = 339,781.20/x
  3. Step 3: Cross multiply
    594,424.53x = 820,305.72 × 339,781.20
  4. Step 4: Simplify right side
    594,424.53x = 278,724,461,908.46
  5. Step 5: Solve for x
    x = 278,724,461,908.46/594,424.53
  6. Step 6: Final answer
    x = 468,897.98

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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.