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Finding the Fourth Proportional to 558,201.68, 770,491.04 and 415,155.48

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Solution

The fourth proportional to 558,201.68, 770,491.04 and 415,155.48 is: 573,043.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,201.68 : 770,491.04 = 415,155.48 : x
  2. Step 2: Convert to fraction form
    558,201.68/770,491.04 = 415,155.48/x
  3. Step 3: Cross multiply
    558,201.68x = 770,491.04 × 415,155.48
  4. Step 4: Simplify right side
    558,201.68x = 319,873,572,581.78
  5. Step 5: Solve for x
    x = 319,873,572,581.78/558,201.68
  6. Step 6: Final answer
    x = 573,043.01

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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.