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Finding the Fourth Proportional to 353,192.40, 530,825.40 and 307,573.20

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Solution

The fourth proportional to 353,192.40, 530,825.40 and 307,573.20 is: 462,262.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,192.40 : 530,825.40 = 307,573.20 : x
  2. Step 2: Convert to fraction form
    353,192.40/530,825.40 = 307,573.20/x
  3. Step 3: Cross multiply
    353,192.40x = 530,825.40 × 307,573.20
  4. Step 4: Simplify right side
    353,192.40x = 163,267,666,919.28
  5. Step 5: Solve for x
    x = 163,267,666,919.28/353,192.40
  6. Step 6: Final answer
    x = 462,262.68

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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.