Home / 530,185.26-731,633.76-288,468.81

Finding the Fourth Proportional to 530,185.26, 731,633.76 and 288,468.81

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Solution

The fourth proportional to 530,185.26, 731,633.76 and 288,468.81 is: 398,075.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,185.26 : 731,633.76 = 288,468.81 : x
  2. Step 2: Convert to fraction form
    530,185.26/731,633.76 = 288,468.81/x
  3. Step 3: Cross multiply
    530,185.26x = 731,633.76 × 288,468.81
  4. Step 4: Simplify right side
    530,185.26x = 211,053,520,103.03
  5. Step 5: Solve for x
    x = 211,053,520,103.03/530,185.26
  6. Step 6: Final answer
    x = 398,075.04

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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.