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Finding the Fourth Proportional to 633,660.83, 874,158.82 and 561,137.63

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Solution

The fourth proportional to 633,660.83, 874,158.82 and 561,137.63 is: 774,110.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,660.83 : 874,158.82 = 561,137.63 : x
  2. Step 2: Convert to fraction form
    633,660.83/874,158.82 = 561,137.63/x
  3. Step 3: Cross multiply
    633,660.83x = 874,158.82 × 561,137.63
  4. Step 4: Simplify right side
    633,660.83x = 490,523,410,798.30
  5. Step 5: Solve for x
    x = 490,523,410,798.30/633,660.83
  6. Step 6: Final answer
    x = 774,110.36

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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.