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Finding the Fourth Proportional to 457,300.88, 685,703.91 and 363,136.86

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Solution

The fourth proportional to 457,300.88, 685,703.91 and 363,136.86 is: 544,508.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,300.88 : 685,703.91 = 363,136.86 : x
  2. Step 2: Convert to fraction form
    457,300.88/685,703.91 = 363,136.86/x
  3. Step 3: Cross multiply
    457,300.88x = 685,703.91 × 363,136.86
  4. Step 4: Simplify right side
    457,300.88x = 249,004,364,767.12
  5. Step 5: Solve for x
    x = 249,004,364,767.12/457,300.88
  6. Step 6: Final answer
    x = 544,508.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.