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Finding the Fourth Proportional to 617,514.13, 925,428.89 and 377,711.40

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Solution

The fourth proportional to 617,514.13, 925,428.89 and 377,711.40 is: 566,051.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,514.13 : 925,428.89 = 377,711.40 : x
  2. Step 2: Convert to fraction form
    617,514.13/925,428.89 = 377,711.40/x
  3. Step 3: Cross multiply
    617,514.13x = 925,428.89 × 377,711.40
  4. Step 4: Simplify right side
    617,514.13x = 349,545,041,642.35
  5. Step 5: Solve for x
    x = 349,545,041,642.35/617,514.13
  6. Step 6: Final answer
    x = 566,051.90

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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.