Home / 530,329.88-731,833.38-288,612.92

Finding the Fourth Proportional to 530,329.88, 731,833.38 and 288,612.92

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Solution

The fourth proportional to 530,329.88, 731,833.38 and 288,612.92 is: 398,273.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,329.88 : 731,833.38 = 288,612.92 : x
  2. Step 2: Convert to fraction form
    530,329.88/731,833.38 = 288,612.92/x
  3. Step 3: Cross multiply
    530,329.88x = 731,833.38 × 288,612.92
  4. Step 4: Simplify right side
    530,329.88x = 211,216,570,584.85
  5. Step 5: Solve for x
    x = 211,216,570,584.85/530,329.88
  6. Step 6: Final answer
    x = 398,273.94

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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.