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Finding the Fourth Proportional to 625,457.74, 862,675.54 and 396,052.37

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Solution

The fourth proportional to 625,457.74, 862,675.54 and 396,052.37 is: 546,263.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,457.74 : 862,675.54 = 396,052.37 : x
  2. Step 2: Convert to fraction form
    625,457.74/862,675.54 = 396,052.37/x
  3. Step 3: Cross multiply
    625,457.74x = 862,675.54 × 396,052.37
  4. Step 4: Simplify right side
    625,457.74x = 341,664,692,158.03
  5. Step 5: Solve for x
    x = 341,664,692,158.03/625,457.74
  6. Step 6: Final answer
    x = 546,263.43

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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.