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Finding the Fourth Proportional to 626,171.01, 864,118.19 and 339,693.15

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Solution

The fourth proportional to 626,171.01, 864,118.19 and 339,693.15 is: 468,777.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,171.01 : 864,118.19 = 339,693.15 : x
  2. Step 2: Convert to fraction form
    626,171.01/864,118.19 = 339,693.15/x
  3. Step 3: Cross multiply
    626,171.01x = 864,118.19 × 339,693.15
  4. Step 4: Simplify right side
    626,171.01x = 293,535,029,162.41
  5. Step 5: Solve for x
    x = 293,535,029,162.41/626,171.01
  6. Step 6: Final answer
    x = 468,777.74

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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.