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Finding the Fourth Proportional to 528,190.27, 790,933.11 and 291,270.13

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Solution

The fourth proportional to 528,190.27, 790,933.11 and 291,270.13 is: 436,159.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,190.27 : 790,933.11 = 291,270.13 : x
  2. Step 2: Convert to fraction form
    528,190.27/790,933.11 = 291,270.13/x
  3. Step 3: Cross multiply
    528,190.27x = 790,933.11 × 291,270.13
  4. Step 4: Simplify right side
    528,190.27x = 230,375,186,701.41
  5. Step 5: Solve for x
    x = 230,375,186,701.41/528,190.27
  6. Step 6: Final answer
    x = 436,159.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.