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Finding the Fourth Proportional to 560,441.16, 773,425.92 and 318,758.58

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Solution

The fourth proportional to 560,441.16, 773,425.92 and 318,758.58 is: 439,896.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,441.16 : 773,425.92 = 318,758.58 : x
  2. Step 2: Convert to fraction form
    560,441.16/773,425.92 = 318,758.58/x
  3. Step 3: Cross multiply
    560,441.16x = 773,425.92 × 318,758.58
  4. Step 4: Simplify right side
    560,441.16x = 246,536,147,994.39
  5. Step 5: Solve for x
    x = 246,536,147,994.39/560,441.16
  6. Step 6: Final answer
    x = 439,896.58

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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.