Home / 851,313.12-1,174,820.07-469,353.57

Finding the Fourth Proportional to 851,313.12, 1,174,820.07 and 469,353.57

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Solution

The fourth proportional to 851,313.12, 1,174,820.07 and 469,353.57 is: 647,712.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,313.12 : 1,174,820.07 = 469,353.57 : x
  2. Step 2: Convert to fraction form
    851,313.12/1,174,820.07 = 469,353.57/x
  3. Step 3: Cross multiply
    851,313.12x = 1,174,820.07 × 469,353.57
  4. Step 4: Simplify right side
    851,313.12x = 551,405,987,796.50
  5. Step 5: Solve for x
    x = 551,405,987,796.50/851,313.12
  6. Step 6: Final answer
    x = 647,712.31

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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.