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Finding the Fourth Proportional to 555,008.80, 831,346.80 and 461,696.80

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Solution

The fourth proportional to 555,008.80, 831,346.80 and 461,696.80 is: 691,574.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,008.80 : 831,346.80 = 461,696.80 : x
  2. Step 2: Convert to fraction form
    555,008.80/831,346.80 = 461,696.80/x
  3. Step 3: Cross multiply
    555,008.80x = 831,346.80 × 461,696.80
  4. Step 4: Simplify right side
    555,008.80x = 383,830,157,250.24
  5. Step 5: Solve for x
    x = 383,830,157,250.24/555,008.80
  6. Step 6: Final answer
    x = 691,574.90

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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.