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Finding the Fourth Proportional to 597,700.80, 895,514.40 and 387,230.40

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Solution

The fourth proportional to 597,700.80, 895,514.40 and 387,230.40 is: 580,173.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    597,700.80 : 895,514.40 = 387,230.40 : x
  2. Step 2: Convert to fraction form
    597,700.80/895,514.40 = 387,230.40/x
  3. Step 3: Cross multiply
    597,700.80x = 895,514.40 × 387,230.40
  4. Step 4: Simplify right side
    597,700.80x = 346,770,399,317.76
  5. Step 5: Solve for x
    x = 346,770,399,317.76/597,700.80
  6. Step 6: Final answer
    x = 580,173.89

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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.