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Finding the Fourth Proportional to 586,555.75, 877,880.81 and 443,613.43

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Solution

The fourth proportional to 586,555.75, 877,880.81 and 443,613.43 is: 663,943.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,555.75 : 877,880.81 = 443,613.43 : x
  2. Step 2: Convert to fraction form
    586,555.75/877,880.81 = 443,613.43/x
  3. Step 3: Cross multiply
    586,555.75x = 877,880.81 × 443,613.43
  4. Step 4: Simplify right side
    586,555.75x = 389,439,717,255.28
  5. Step 5: Solve for x
    x = 389,439,717,255.28/586,555.75
  6. Step 6: Final answer
    x = 663,943.23

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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.