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Finding the Fourth Proportional to 572,703.36, 790,726.02 and 357,939.96

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Solution

The fourth proportional to 572,703.36, 790,726.02 and 357,939.96 is: 494,204.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,703.36 : 790,726.02 = 357,939.96 : x
  2. Step 2: Convert to fraction form
    572,703.36/790,726.02 = 357,939.96/x
  3. Step 3: Cross multiply
    572,703.36x = 790,726.02 × 357,939.96
  4. Step 4: Simplify right side
    572,703.36x = 283,032,439,969.76
  5. Step 5: Solve for x
    x = 283,032,439,969.76/572,703.36
  6. Step 6: Final answer
    x = 494,204.26

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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.