Home / 857,695.98-1,183,762.18-475,845.78

Finding the Fourth Proportional to 857,695.98, 1,183,762.18 and 475,845.78

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Solution

The fourth proportional to 857,695.98, 1,183,762.18 and 475,845.78 is: 656,745.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,695.98 : 1,183,762.18 = 475,845.78 : x
  2. Step 2: Convert to fraction form
    857,695.98/1,183,762.18 = 475,845.78/x
  3. Step 3: Cross multiply
    857,695.98x = 1,183,762.18 × 475,845.78
  4. Step 4: Simplify right side
    857,695.98x = 563,288,237,876.60
  5. Step 5: Solve for x
    x = 563,288,237,876.60/857,695.98
  6. Step 6: Final answer
    x = 656,745.81

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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.