Home / 665,827.16-918,857.74-404,185.56

Finding the Fourth Proportional to 665,827.16, 918,857.74 and 404,185.56

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Solution

The fourth proportional to 665,827.16, 918,857.74 and 404,185.56 is: 557,785.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,827.16 : 918,857.74 = 404,185.56 : x
  2. Step 2: Convert to fraction form
    665,827.16/918,857.74 = 404,185.56/x
  3. Step 3: Cross multiply
    665,827.16x = 918,857.74 × 404,185.56
  4. Step 4: Simplify right side
    665,827.16x = 371,389,030,202.23
  5. Step 5: Solve for x
    x = 371,389,030,202.23/665,827.16
  6. Step 6: Final answer
    x = 557,785.94

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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.