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Finding the Fourth Proportional to 701,312.80, 1,049,344.80 and 465,116.80

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Solution

The fourth proportional to 701,312.80, 1,049,344.80 and 465,116.80 is: 695,934.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,312.80 : 1,049,344.80 = 465,116.80 : x
  2. Step 2: Convert to fraction form
    701,312.80/1,049,344.80 = 465,116.80/x
  3. Step 3: Cross multiply
    701,312.80x = 1,049,344.80 × 465,116.80
  4. Step 4: Simplify right side
    701,312.80x = 488,067,895,472.64
  5. Step 5: Solve for x
    x = 488,067,895,472.64/701,312.80
  6. Step 6: Final answer
    x = 695,934.67

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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.