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Finding the Fourth Proportional to 576,012.45, 794,895.55 and 317,887.52

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Solution

The fourth proportional to 576,012.45, 794,895.55 and 317,887.52 is: 438,683.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,012.45 : 794,895.55 = 317,887.52 : x
  2. Step 2: Convert to fraction form
    576,012.45/794,895.55 = 317,887.52/x
  3. Step 3: Cross multiply
    576,012.45x = 794,895.55 × 317,887.52
  4. Step 4: Simplify right side
    576,012.45x = 252,687,376,241.06
  5. Step 5: Solve for x
    x = 252,687,376,241.06/576,012.45
  6. Step 6: Final answer
    x = 438,683.88

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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.