Home / 377,858.10-521,436.36-205,779.07

Finding the Fourth Proportional to 377,858.10, 521,436.36 and 205,779.07

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Solution

The fourth proportional to 377,858.10, 521,436.36 and 205,779.07 is: 283,970.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,858.10 : 521,436.36 = 205,779.07 : x
  2. Step 2: Convert to fraction form
    377,858.10/521,436.36 = 205,779.07/x
  3. Step 3: Cross multiply
    377,858.10x = 521,436.36 × 205,779.07
  4. Step 4: Simplify right side
    377,858.10x = 107,300,689,224.99
  5. Step 5: Solve for x
    x = 107,300,689,224.99/377,858.10
  6. Step 6: Final answer
    x = 283,970.86

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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.