Home / 529,116.58-730,186.37-287,403.85

Finding the Fourth Proportional to 529,116.58, 730,186.37 and 287,403.85

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Solution

The fourth proportional to 529,116.58, 730,186.37 and 287,403.85 is: 396,620.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,116.58 : 730,186.37 = 287,403.85 : x
  2. Step 2: Convert to fraction form
    529,116.58/730,186.37 = 287,403.85/x
  3. Step 3: Cross multiply
    529,116.58x = 730,186.37 × 287,403.85
  4. Step 4: Simplify right side
    529,116.58x = 209,858,373,955.52
  5. Step 5: Solve for x
    x = 209,858,373,955.52/529,116.58
  6. Step 6: Final answer
    x = 396,620.29

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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.