Home / 530,415.44-731,976.32-288,697.44

Finding the Fourth Proportional to 530,415.44, 731,976.32 and 288,697.44

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Solution

The fourth proportional to 530,415.44, 731,976.32 and 288,697.44 is: 398,404.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,415.44 : 731,976.32 = 288,697.44 : x
  2. Step 2: Convert to fraction form
    530,415.44/731,976.32 = 288,697.44/x
  3. Step 3: Cross multiply
    530,415.44x = 731,976.32 × 288,697.44
  4. Step 4: Simplify right side
    530,415.44x = 211,319,689,724.62
  5. Step 5: Solve for x
    x = 211,319,689,724.62/530,415.44
  6. Step 6: Final answer
    x = 398,404.11

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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.