Home / 1,292,267.45-1,938,690.27-393,779.51

Finding the Fourth Proportional to 1,292,267.45, 1,938,690.27 and 393,779.51

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Solution

The fourth proportional to 1,292,267.45, 1,938,690.27 and 393,779.51 is: 590,757.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,267.45 : 1,938,690.27 = 393,779.51 : x
  2. Step 2: Convert to fraction form
    1,292,267.45/1,938,690.27 = 393,779.51/x
  3. Step 3: Cross multiply
    1,292,267.45x = 1,938,690.27 × 393,779.51
  4. Step 4: Simplify right side
    1,292,267.45x = 763,416,494,868.92
  5. Step 5: Solve for x
    x = 763,416,494,868.92/1,292,267.45
  6. Step 6: Final answer
    x = 590,757.35

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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.