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Finding the Fourth Proportional to 655,841.61, 905,479.29 and 535,270.48

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Solution

The fourth proportional to 655,841.61, 905,479.29 and 535,270.48 is: 739,014.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,841.61 : 905,479.29 = 535,270.48 : x
  2. Step 2: Convert to fraction form
    655,841.61/905,479.29 = 535,270.48/x
  3. Step 3: Cross multiply
    655,841.61x = 905,479.29 × 535,270.48
  4. Step 4: Simplify right side
    655,841.61x = 484,676,331,924.66
  5. Step 5: Solve for x
    x = 484,676,331,924.66/655,841.61
  6. Step 6: Final answer
    x = 739,014.31

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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.