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Finding the Fourth Proportional to 500,516.80, 749,791.05 and 465,087.40

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Solution

The fourth proportional to 500,516.80, 749,791.05 and 465,087.40 is: 696,716.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,516.80 : 749,791.05 = 465,087.40 : x
  2. Step 2: Convert to fraction form
    500,516.80/749,791.05 = 465,087.40/x
  3. Step 3: Cross multiply
    500,516.80x = 749,791.05 × 465,087.40
  4. Step 4: Simplify right side
    500,516.80x = 348,718,369,987.77
  5. Step 5: Solve for x
    x = 348,718,369,987.77/500,516.80
  6. Step 6: Final answer
    x = 696,716.61

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1.5x scale

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.