Home / 530,190.06-731,640.37-288,473.57

Finding the Fourth Proportional to 530,190.06, 731,640.37 and 288,473.57

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Solution

The fourth proportional to 530,190.06, 731,640.37 and 288,473.57 is: 398,081.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,190.06 : 731,640.37 = 288,473.57 : x
  2. Step 2: Convert to fraction form
    530,190.06/731,640.37 = 288,473.57/x
  3. Step 3: Cross multiply
    530,190.06x = 731,640.37 × 288,473.57
  4. Step 4: Simplify right side
    530,190.06x = 211,058,908,047.65
  5. Step 5: Solve for x
    x = 211,058,908,047.65/530,190.06
  6. Step 6: Final answer
    x = 398,081.60

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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.