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Finding the Fourth Proportional to 647,808.01, 893,972.73 and 361,327.87

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Solution

The fourth proportional to 647,808.01, 893,972.73 and 361,327.87 is: 498,631.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,808.01 : 893,972.73 = 361,327.87 : x
  2. Step 2: Convert to fraction form
    647,808.01/893,972.73 = 361,327.87/x
  3. Step 3: Cross multiply
    647,808.01x = 893,972.73 × 361,327.87
  4. Step 4: Simplify right side
    647,808.01x = 323,017,262,368.99
  5. Step 5: Solve for x
    x = 323,017,262,368.99/647,808.01
  6. Step 6: Final answer
    x = 498,631.16

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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.