Home / 1,229,313.56-1,696,445.69-685,455.89

Finding the Fourth Proportional to 1,229,313.56, 1,696,445.69 and 685,455.89

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Solution

The fourth proportional to 1,229,313.56, 1,696,445.69 and 685,455.89 is: 945,925.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,313.56 : 1,696,445.69 = 685,455.89 : x
  2. Step 2: Convert to fraction form
    1,229,313.56/1,696,445.69 = 685,455.89/x
  3. Step 3: Cross multiply
    1,229,313.56x = 1,696,445.69 × 685,455.89
  4. Step 4: Simplify right side
    1,229,313.56x = 1,162,838,678,366.11
  5. Step 5: Solve for x
    x = 1,162,838,678,366.11/1,229,313.56
  6. Step 6: Final answer
    x = 945,925.21

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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.