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Finding the Fourth Proportional to 626,560.96, 864,630.97 and 340,074.89

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Solution

The fourth proportional to 626,560.96, 864,630.97 and 340,074.89 is: 469,290.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,560.96 : 864,630.97 = 340,074.89 : x
  2. Step 2: Convert to fraction form
    626,560.96/864,630.97 = 340,074.89/x
  3. Step 3: Cross multiply
    626,560.96x = 864,630.97 × 340,074.89
  4. Step 4: Simplify right side
    626,560.96x = 294,039,282,013.34
  5. Step 5: Solve for x
    x = 294,039,282,013.34/626,560.96
  6. Step 6: Final answer
    x = 469,290.78

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1.5x scale

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.