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Finding the Fourth Proportional to 571,251.64, 787,417.86 and 450,198.76

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Solution

The fourth proportional to 571,251.64, 787,417.86 and 450,198.76 is: 620,557.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,251.64 : 787,417.86 = 450,198.76 : x
  2. Step 2: Convert to fraction form
    571,251.64/787,417.86 = 450,198.76/x
  3. Step 3: Cross multiply
    571,251.64x = 787,417.86 × 450,198.76
  4. Step 4: Simplify right side
    571,251.64x = 354,494,544,173.85
  5. Step 5: Solve for x
    x = 354,494,544,173.85/571,251.64
  6. Step 6: Final answer
    x = 620,557.60

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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.