Home / 1,200,156.17-1,656,162.79-684,021.77

Finding the Fourth Proportional to 1,200,156.17, 1,656,162.79 and 684,021.77

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Solution

The fourth proportional to 1,200,156.17, 1,656,162.79 and 684,021.77 is: 943,920.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,156.17 : 1,656,162.79 = 684,021.77 : x
  2. Step 2: Convert to fraction form
    1,200,156.17/1,656,162.79 = 684,021.77/x
  3. Step 3: Cross multiply
    1,200,156.17x = 1,656,162.79 × 684,021.77
  4. Step 4: Simplify right side
    1,200,156.17x = 1,132,851,405,454.29
  5. Step 5: Solve for x
    x = 1,132,851,405,454.29/1,200,156.17
  6. Step 6: Final answer
    x = 943,920.00

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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.