Home / 530,347.39-731,865.37-288,624.77

Finding the Fourth Proportional to 530,347.39, 731,865.37 and 288,624.77

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Solution

The fourth proportional to 530,347.39, 731,865.37 and 288,624.77 is: 398,294.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,347.39 : 731,865.37 = 288,624.77 : x
  2. Step 2: Convert to fraction form
    530,347.39/731,865.37 = 288,624.77/x
  3. Step 3: Cross multiply
    530,347.39x = 731,865.37 × 288,624.77
  4. Step 4: Simplify right side
    530,347.39x = 211,234,472,789.05
  5. Step 5: Solve for x
    x = 211,234,472,789.05/530,347.39
  6. Step 6: Final answer
    x = 398,294.55

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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.