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Finding the Fourth Proportional to 573,681.18, 860,133.53 and 321,136.04

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Solution

The fourth proportional to 573,681.18, 860,133.53 and 321,136.04 is: 481,486.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,681.18 : 860,133.53 = 321,136.04 : x
  2. Step 2: Convert to fraction form
    573,681.18/860,133.53 = 321,136.04/x
  3. Step 3: Cross multiply
    573,681.18x = 860,133.53 × 321,136.04
  4. Step 4: Simplify right side
    573,681.18x = 276,219,878,648.60
  5. Step 5: Solve for x
    x = 276,219,878,648.60/573,681.18
  6. Step 6: Final answer
    x = 481,486.73

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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.