Home / 530,192.76-731,644.11-288,476.31

Finding the Fourth Proportional to 530,192.76, 731,644.11 and 288,476.31

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Solution

The fourth proportional to 530,192.76, 731,644.11 and 288,476.31 is: 398,085.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,192.76 : 731,644.11 = 288,476.31 : x
  2. Step 2: Convert to fraction form
    530,192.76/731,644.11 = 288,476.31/x
  3. Step 3: Cross multiply
    530,192.76x = 731,644.11 × 288,476.31
  4. Step 4: Simplify right side
    530,192.76x = 211,061,993,086.03
  5. Step 5: Solve for x
    x = 211,061,993,086.03/530,192.76
  6. Step 6: Final answer
    x = 398,085.39

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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.