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Finding the Fourth Proportional to 556,885.80, 835,328.70 and 477,169.65

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Solution

The fourth proportional to 556,885.80, 835,328.70 and 477,169.65 is: 715,754.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,885.80 : 835,328.70 = 477,169.65 : x
  2. Step 2: Convert to fraction form
    556,885.80/835,328.70 = 477,169.65/x
  3. Step 3: Cross multiply
    556,885.80x = 835,328.70 × 477,169.65
  4. Step 4: Simplify right side
    556,885.80x = 398,593,503,413.96
  5. Step 5: Solve for x
    x = 398,593,503,413.96/556,885.80
  6. Step 6: Final answer
    x = 715,754.48

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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.