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Finding the Fourth Proportional to 620,859.90, 935,438.50 and 560,957.96

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Solution

The fourth proportional to 620,859.90, 935,438.50 and 560,957.96 is: 845,185.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,859.90 : 935,438.50 = 560,957.96 : x
  2. Step 2: Convert to fraction form
    620,859.90/935,438.50 = 560,957.96/x
  3. Step 3: Cross multiply
    620,859.90x = 935,438.50 × 560,957.96
  4. Step 4: Simplify right side
    620,859.90x = 524,741,672,665.46
  5. Step 5: Solve for x
    x = 524,741,672,665.46/620,859.90
  6. Step 6: Final answer
    x = 845,185.32

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.