Home / 665,824.16-918,853.60-404,182.56

Finding the Fourth Proportional to 665,824.16, 918,853.60 and 404,182.56

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Solution

The fourth proportional to 665,824.16, 918,853.60 and 404,182.56 is: 557,781.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,824.16 : 918,853.60 = 404,182.56 : x
  2. Step 2: Convert to fraction form
    665,824.16/918,853.60 = 404,182.56/x
  3. Step 3: Cross multiply
    665,824.16x = 918,853.60 × 404,182.56
  4. Step 4: Simplify right side
    665,824.16x = 371,384,600,313.22
  5. Step 5: Solve for x
    x = 371,384,600,313.22/665,824.16
  6. Step 6: Final answer
    x = 557,781.80

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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.