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Finding the Fourth Proportional to 594,966.72, 821,730.09 and 401,039.96

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Solution

The fourth proportional to 594,966.72, 821,730.09 and 401,039.96 is: 553,890.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    594,966.72 : 821,730.09 = 401,039.96 : x
  2. Step 2: Convert to fraction form
    594,966.72/821,730.09 = 401,039.96/x
  3. Step 3: Cross multiply
    594,966.72x = 821,730.09 × 401,039.96
  4. Step 4: Simplify right side
    594,966.72x = 329,546,602,424.40
  5. Step 5: Solve for x
    x = 329,546,602,424.40/594,966.72
  6. Step 6: Final answer
    x = 553,890.82

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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.