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Finding the Fourth Proportional to 587,176.06, 810,307.11 and 318,904.06

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Solution

The fourth proportional to 587,176.06, 810,307.11 and 318,904.06 is: 440,089.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,176.06 : 810,307.11 = 318,904.06 : x
  2. Step 2: Convert to fraction form
    587,176.06/810,307.11 = 318,904.06/x
  3. Step 3: Cross multiply
    587,176.06x = 810,307.11 × 318,904.06
  4. Step 4: Simplify right side
    587,176.06x = 258,410,227,225.87
  5. Step 5: Solve for x
    x = 258,410,227,225.87/587,176.06
  6. Step 6: Final answer
    x = 440,089.86

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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.