Home / 657,142.96-985,835.76-207,976.72

Finding the Fourth Proportional to 657,142.96, 985,835.76 and 207,976.72

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Solution

The fourth proportional to 657,142.96, 985,835.76 and 207,976.72 is: 312,003.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,142.96 : 985,835.76 = 207,976.72 : x
  2. Step 2: Convert to fraction form
    657,142.96/985,835.76 = 207,976.72/x
  3. Step 3: Cross multiply
    657,142.96x = 985,835.76 × 207,976.72
  4. Step 4: Simplify right side
    657,142.96x = 205,030,887,823.51
  5. Step 5: Solve for x
    x = 205,030,887,823.51/657,142.96
  6. Step 6: Final answer
    x = 312,003.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.