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Finding the Fourth Proportional to 464,739.80, 697,109.70 and 371,427.80

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Solution

The fourth proportional to 464,739.80, 697,109.70 and 371,427.80 is: 557,141.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,739.80 : 697,109.70 = 371,427.80 : x
  2. Step 2: Convert to fraction form
    464,739.80/697,109.70 = 371,427.80/x
  3. Step 3: Cross multiply
    464,739.80x = 697,109.70 × 371,427.80
  4. Step 4: Simplify right side
    464,739.80x = 258,925,922,229.66
  5. Step 5: Solve for x
    x = 258,925,922,229.66/464,739.80
  6. Step 6: Final answer
    x = 557,141.70

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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.