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Finding the Fourth Proportional to 373,079.38, 514,703.40 and 229,590.31

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Solution

The fourth proportional to 373,079.38, 514,703.40 and 229,590.31 is: 316,744.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,079.38 : 514,703.40 = 229,590.31 : x
  2. Step 2: Convert to fraction form
    373,079.38/514,703.40 = 229,590.31/x
  3. Step 3: Cross multiply
    373,079.38x = 514,703.40 × 229,590.31
  4. Step 4: Simplify right side
    373,079.38x = 118,170,913,164.05
  5. Step 5: Solve for x
    x = 118,170,913,164.05/373,079.38
  6. Step 6: Final answer
    x = 316,744.69

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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.