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Finding the Fourth Proportional to 388,526.17, 536,023.90 and 235,453.94

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Solution

The fourth proportional to 388,526.17, 536,023.90 and 235,453.94 is: 324,840.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,526.17 : 536,023.90 = 235,453.94 : x
  2. Step 2: Convert to fraction form
    388,526.17/536,023.90 = 235,453.94/x
  3. Step 3: Cross multiply
    388,526.17x = 536,023.90 × 235,453.94
  4. Step 4: Simplify right side
    388,526.17x = 126,208,939,475.67
  5. Step 5: Solve for x
    x = 126,208,939,475.67/388,526.17
  6. Step 6: Final answer
    x = 324,840.25

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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.