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Finding the Fourth Proportional to 563,662.40, 845,954.40 and 545,230.40

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Solution

The fourth proportional to 563,662.40, 845,954.40 and 545,230.40 is: 818,291.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,662.40 : 845,954.40 = 545,230.40 : x
  2. Step 2: Convert to fraction form
    563,662.40/845,954.40 = 545,230.40/x
  3. Step 3: Cross multiply
    563,662.40x = 845,954.40 × 545,230.40
  4. Step 4: Simplify right side
    563,662.40x = 461,240,055,893.76
  5. Step 5: Solve for x
    x = 461,240,055,893.76/563,662.40
  6. Step 6: Final answer
    x = 818,291.33

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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.