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Finding the Fourth Proportional to 570,338.87, 787,242.85 and 328,782.92

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Solution

The fourth proportional to 570,338.87, 787,242.85 and 328,782.92 is: 453,821.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,338.87 : 787,242.85 = 328,782.92 : x
  2. Step 2: Convert to fraction form
    570,338.87/787,242.85 = 328,782.92/x
  3. Step 3: Cross multiply
    570,338.87x = 787,242.85 × 328,782.92
  4. Step 4: Simplify right side
    570,338.87x = 258,831,998,213.95
  5. Step 5: Solve for x
    x = 258,831,998,213.95/570,338.87
  6. Step 6: Final answer
    x = 453,821.43

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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.