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Finding the Fourth Proportional to 626,479.56, 864,534.60 and 339,999.84

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Solution

The fourth proportional to 626,479.56, 864,534.60 and 339,999.84 is: 469,195.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,479.56 : 864,534.60 = 339,999.84 : x
  2. Step 2: Convert to fraction form
    626,479.56/864,534.60 = 339,999.84/x
  3. Step 3: Cross multiply
    626,479.56x = 864,534.60 × 339,999.84
  4. Step 4: Simplify right side
    626,479.56x = 293,941,625,674.46
  5. Step 5: Solve for x
    x = 293,941,625,674.46/626,479.56
  6. Step 6: Final answer
    x = 469,195.88

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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.