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Finding the Fourth Proportional to 550,396.65, 825,594.98 and 417,536.40

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Solution

The fourth proportional to 550,396.65, 825,594.98 and 417,536.40 is: 626,304.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,396.65 : 825,594.98 = 417,536.40 : x
  2. Step 2: Convert to fraction form
    550,396.65/825,594.98 = 417,536.40/x
  3. Step 3: Cross multiply
    550,396.65x = 825,594.98 × 417,536.40
  4. Step 4: Simplify right side
    550,396.65x = 344,715,953,719.59
  5. Step 5: Solve for x
    x = 344,715,953,719.59/550,396.65
  6. Step 6: Final answer
    x = 626,304.60

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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.