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Finding the Fourth Proportional to 835,501.80, 1,253,252.70 and 782,357.70

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Solution

The fourth proportional to 835,501.80, 1,253,252.70 and 782,357.70 is: 1,173,536.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,501.80 : 1,253,252.70 = 782,357.70 : x
  2. Step 2: Convert to fraction form
    835,501.80/1,253,252.70 = 782,357.70/x
  3. Step 3: Cross multiply
    835,501.80x = 1,253,252.70 × 782,357.70
  4. Step 4: Simplify right side
    835,501.80x = 980,491,899,890.79
  5. Step 5: Solve for x
    x = 980,491,899,890.79/835,501.80
  6. Step 6: Final answer
    x = 1,173,536.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.