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Finding the Fourth Proportional to 556,015.46, 832,840.52 and 328,065.41

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Solution

The fourth proportional to 556,015.46, 832,840.52 and 328,065.41 is: 491,400.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,015.46 : 832,840.52 = 328,065.41 : x
  2. Step 2: Convert to fraction form
    556,015.46/832,840.52 = 328,065.41/x
  3. Step 3: Cross multiply
    556,015.46x = 832,840.52 × 328,065.41
  4. Step 4: Simplify right side
    556,015.46x = 273,226,166,658.41
  5. Step 5: Solve for x
    x = 273,226,166,658.41/556,015.46
  6. Step 6: Final answer
    x = 491,400.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.