Home / 665,825.16-918,854.98-404,183.56

Finding the Fourth Proportional to 665,825.16, 918,854.98 and 404,183.56

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Solution

The fourth proportional to 665,825.16, 918,854.98 and 404,183.56 is: 557,783.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,825.16 : 918,854.98 = 404,183.56 : x
  2. Step 2: Convert to fraction form
    665,825.16/918,854.98 = 404,183.56/x
  3. Step 3: Cross multiply
    665,825.16x = 918,854.98 × 404,183.56
  4. Step 4: Simplify right side
    665,825.16x = 371,386,076,940.13
  5. Step 5: Solve for x
    x = 371,386,076,940.13/665,825.16
  6. Step 6: Final answer
    x = 557,783.18

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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.