Home / 643,582.83-965,530.33-194,276.86

Finding the Fourth Proportional to 643,582.83, 965,530.33 and 194,276.86

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Solution

The fourth proportional to 643,582.83, 965,530.33 and 194,276.86 is: 291,462.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,582.83 : 965,530.33 = 194,276.86 : x
  2. Step 2: Convert to fraction form
    643,582.83/965,530.33 = 194,276.86/x
  3. Step 3: Cross multiply
    643,582.83x = 965,530.33 × 194,276.86
  4. Step 4: Simplify right side
    643,582.83x = 187,580,203,278.75
  5. Step 5: Solve for x
    x = 187,580,203,278.75/643,582.83
  6. Step 6: Final answer
    x = 291,462.41

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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.