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Finding the Fourth Proportional to 443,271.70, 611,299.74 and 352,925.92

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Solution

The fourth proportional to 443,271.70, 611,299.74 and 352,925.92 is: 486,707.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,271.70 : 611,299.74 = 352,925.92 : x
  2. Step 2: Convert to fraction form
    443,271.70/611,299.74 = 352,925.92/x
  3. Step 3: Cross multiply
    443,271.70x = 611,299.74 × 352,925.92
  4. Step 4: Simplify right side
    443,271.70x = 215,743,523,135.26
  5. Step 5: Solve for x
    x = 215,743,523,135.26/443,271.70
  6. Step 6: Final answer
    x = 486,707.19

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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.