Home / 685,830.66-1,024,574.68-443,974.26

Finding the Fourth Proportional to 685,830.66, 1,024,574.68 and 443,974.26

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Solution

The fourth proportional to 685,830.66, 1,024,574.68 and 443,974.26 is: 663,261.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,830.66 : 1,024,574.68 = 443,974.26 : x
  2. Step 2: Convert to fraction form
    685,830.66/1,024,574.68 = 443,974.26/x
  3. Step 3: Cross multiply
    685,830.66x = 1,024,574.68 × 443,974.26
  4. Step 4: Simplify right side
    685,830.66x = 454,884,785,040.28
  5. Step 5: Solve for x
    x = 454,884,785,040.28/685,830.66
  6. Step 6: Final answer
    x = 663,261.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.