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Finding the Fourth Proportional to 416,761.56, 575,130.24 and 225,779.76

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Solution

The fourth proportional to 416,761.56, 575,130.24 and 225,779.76 is: 311,575.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,761.56 : 575,130.24 = 225,779.76 : x
  2. Step 2: Convert to fraction form
    416,761.56/575,130.24 = 225,779.76/x
  3. Step 3: Cross multiply
    416,761.56x = 575,130.24 × 225,779.76
  4. Step 4: Simplify right side
    416,761.56x = 129,852,767,555.94
  5. Step 5: Solve for x
    x = 129,852,767,555.94/416,761.56
  6. Step 6: Final answer
    x = 311,575.68

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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.