Home / 685,556.34-945,911.16-440,669.04

Finding the Fourth Proportional to 685,556.34, 945,911.16 and 440,669.04

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Solution

The fourth proportional to 685,556.34, 945,911.16 and 440,669.04 is: 608,022.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,556.34 : 945,911.16 = 440,669.04 : x
  2. Step 2: Convert to fraction form
    685,556.34/945,911.16 = 440,669.04/x
  3. Step 3: Cross multiply
    685,556.34x = 945,911.16 × 440,669.04
  4. Step 4: Simplify right side
    685,556.34x = 416,833,762,802.49
  5. Step 5: Solve for x
    x = 416,833,762,802.49/685,556.34
  6. Step 6: Final answer
    x = 608,022.62

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1.5x scale

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.