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Finding the Fourth Proportional to 625,245.84, 862,741.76 and 370,555.92

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Solution

The fourth proportional to 625,245.84, 862,741.76 and 370,555.92 is: 511,309.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,245.84 : 862,741.76 = 370,555.92 : x
  2. Step 2: Convert to fraction form
    625,245.84/862,741.76 = 370,555.92/x
  3. Step 3: Cross multiply
    625,245.84x = 862,741.76 × 370,555.92
  4. Step 4: Simplify right side
    625,245.84x = 319,694,066,599.22
  5. Step 5: Solve for x
    x = 319,694,066,599.22/625,245.84
  6. Step 6: Final answer
    x = 511,309.39

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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.