Home / 1,287,450.96-1,931,241.96-434,553.72

Finding the Fourth Proportional to 1,287,450.96, 1,931,241.96 and 434,553.72

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Solution

The fourth proportional to 1,287,450.96, 1,931,241.96 and 434,553.72 is: 651,852.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,450.96 : 1,931,241.96 = 434,553.72 : x
  2. Step 2: Convert to fraction form
    1,287,450.96/1,931,241.96 = 434,553.72/x
  3. Step 3: Cross multiply
    1,287,450.96x = 1,931,241.96 × 434,553.72
  4. Step 4: Simplify right side
    1,287,450.96x = 839,228,377,938.09
  5. Step 5: Solve for x
    x = 839,228,377,938.09/1,287,450.96
  6. Step 6: Final answer
    x = 651,852.69

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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.