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Finding the Fourth Proportional to 626,586.56, 864,666.30 and 340,100.60

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Solution

The fourth proportional to 626,586.56, 864,666.30 and 340,100.60 is: 469,326.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,586.56 : 864,666.30 = 340,100.60 : x
  2. Step 2: Convert to fraction form
    626,586.56/864,666.30 = 340,100.60/x
  3. Step 3: Cross multiply
    626,586.56x = 864,666.30 × 340,100.60
  4. Step 4: Simplify right side
    626,586.56x = 294,073,527,429.78
  5. Step 5: Solve for x
    x = 294,073,527,429.78/626,586.56
  6. Step 6: Final answer
    x = 469,326.26

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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.