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Finding the Fourth Proportional to 706,172.43, 974,506.39 and 383,890.64

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Solution

The fourth proportional to 706,172.43, 974,506.39 and 383,890.64 is: 529,762.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,172.43 : 974,506.39 = 383,890.64 : x
  2. Step 2: Convert to fraction form
    706,172.43/974,506.39 = 383,890.64/x
  3. Step 3: Cross multiply
    706,172.43x = 974,506.39 × 383,890.64
  4. Step 4: Simplify right side
    706,172.43x = 374,103,883,549.91
  5. Step 5: Solve for x
    x = 374,103,883,549.91/706,172.43
  6. Step 6: Final answer
    x = 529,762.80

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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.