Home / 530,263.76-731,777.48-288,559.44

Finding the Fourth Proportional to 530,263.76, 731,777.48 and 288,559.44

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Solution

The fourth proportional to 530,263.76, 731,777.48 and 288,559.44 is: 398,219.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,263.76 : 731,777.48 = 288,559.44 : x
  2. Step 2: Convert to fraction form
    530,263.76/731,777.48 = 288,559.44/x
  3. Step 3: Cross multiply
    530,263.76x = 731,777.48 × 288,559.44
  4. Step 4: Simplify right side
    530,263.76x = 211,161,299,833.41
  5. Step 5: Solve for x
    x = 211,161,299,833.41/530,263.76
  6. Step 6: Final answer
    x = 398,219.37

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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.