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Finding the Fourth Proportional to 706,358.07, 974,771.82 and 384,065.55

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Solution

The fourth proportional to 706,358.07, 974,771.82 and 384,065.55 is: 530,009.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,358.07 : 974,771.82 = 384,065.55 : x
  2. Step 2: Convert to fraction form
    706,358.07/974,771.82 = 384,065.55/x
  3. Step 3: Cross multiply
    706,358.07x = 974,771.82 × 384,065.55
  4. Step 4: Simplify right side
    706,358.07x = 374,376,275,172.80
  5. Step 5: Solve for x
    x = 374,376,275,172.80/706,358.07
  6. Step 6: Final answer
    x = 530,009.20

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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.