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Finding the Fourth Proportional to 573,180.88, 790,929.48 and 318,490.96

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Solution

The fourth proportional to 573,180.88, 790,929.48 and 318,490.96 is: 439,484.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,180.88 : 790,929.48 = 318,490.96 : x
  2. Step 2: Convert to fraction form
    573,180.88/790,929.48 = 318,490.96/x
  3. Step 3: Cross multiply
    573,180.88x = 790,929.48 × 318,490.96
  4. Step 4: Simplify right side
    573,180.88x = 251,903,889,377.50
  5. Step 5: Solve for x
    x = 251,903,889,377.50/573,180.88
  6. Step 6: Final answer
    x = 439,484.11

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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.