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Finding the Fourth Proportional to 574,869.72, 793,320.96 and 313,223.64

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Solution

The fourth proportional to 574,869.72, 793,320.96 and 313,223.64 is: 432,249.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,869.72 : 793,320.96 = 313,223.64 : x
  2. Step 2: Convert to fraction form
    574,869.72/793,320.96 = 313,223.64/x
  3. Step 3: Cross multiply
    574,869.72x = 793,320.96 × 313,223.64
  4. Step 4: Simplify right side
    574,869.72x = 248,486,878,779.49
  5. Step 5: Solve for x
    x = 248,486,878,779.49/574,869.72
  6. Step 6: Final answer
    x = 432,249.03

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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.