Home / 530,190.56-731,641.06-288,474.07

Finding the Fourth Proportional to 530,190.56, 731,641.06 and 288,474.07

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Solution

The fourth proportional to 530,190.56, 731,641.06 and 288,474.07 is: 398,082.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,190.56 : 731,641.06 = 288,474.07 : x
  2. Step 2: Convert to fraction form
    530,190.56/731,641.06 = 288,474.07/x
  3. Step 3: Cross multiply
    530,190.56x = 731,641.06 × 288,474.07
  4. Step 4: Simplify right side
    530,190.56x = 211,059,474,357.31
  5. Step 5: Solve for x
    x = 211,059,474,357.31/530,190.56
  6. Step 6: Final answer
    x = 398,082.29

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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.