Home / 1,417,763.30-1,955,941.75-820,638.19

Finding the Fourth Proportional to 1,417,763.30, 1,955,941.75 and 820,638.19

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Solution

The fourth proportional to 1,417,763.30, 1,955,941.75 and 820,638.19 is: 1,132,149.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417,763.30 : 1,955,941.75 = 820,638.19 : x
  2. Step 2: Convert to fraction form
    1,417,763.30/1,955,941.75 = 820,638.19/x
  3. Step 3: Cross multiply
    1,417,763.30x = 1,955,941.75 × 820,638.19
  4. Step 4: Simplify right side
    1,417,763.30x = 1,605,120,497,465.43
  5. Step 5: Solve for x
    x = 1,605,120,497,465.43/1,417,763.30
  6. Step 6: Final answer
    x = 1,132,149.84

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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.