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Finding the Fourth Proportional to 560,690.28, 773,725.66 and 318,950.22

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Solution

The fourth proportional to 560,690.28, 773,725.66 and 318,950.22 is: 440,135.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,690.28 : 773,725.66 = 318,950.22 : x
  2. Step 2: Convert to fraction form
    560,690.28/773,725.66 = 318,950.22/x
  3. Step 3: Cross multiply
    560,690.28x = 773,725.66 × 318,950.22
  4. Step 4: Simplify right side
    560,690.28x = 246,779,969,476.65
  5. Step 5: Solve for x
    x = 246,779,969,476.65/560,690.28
  6. Step 6: Final answer
    x = 440,135.99

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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.