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Finding the Fourth Proportional to 475,425.28, 655,708.88 and 404,041.60

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Solution

The fourth proportional to 475,425.28, 655,708.88 and 404,041.60 is: 557,256.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,425.28 : 655,708.88 = 404,041.60 : x
  2. Step 2: Convert to fraction form
    475,425.28/655,708.88 = 404,041.60/x
  3. Step 3: Cross multiply
    475,425.28x = 655,708.88 × 404,041.60
  4. Step 4: Simplify right side
    475,425.28x = 264,933,665,009.41
  5. Step 5: Solve for x
    x = 264,933,665,009.41/475,425.28
  6. Step 6: Final answer
    x = 557,256.16

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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.