Home / 1,229,313.43-1,696,445.54-685,455.74

Finding the Fourth Proportional to 1,229,313.43, 1,696,445.54 and 685,455.74

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Solution

The fourth proportional to 1,229,313.43, 1,696,445.54 and 685,455.74 is: 945,925.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,313.43 : 1,696,445.54 = 685,455.74 : x
  2. Step 2: Convert to fraction form
    1,229,313.43/1,696,445.54 = 685,455.74/x
  3. Step 3: Cross multiply
    1,229,313.43x = 1,696,445.54 × 685,455.74
  4. Step 4: Simplify right side
    1,229,313.43x = 1,162,838,329,563.12
  5. Step 5: Solve for x
    x = 1,162,838,329,563.12/1,229,313.43
  6. Step 6: Final answer
    x = 945,925.02

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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.