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Finding the Fourth Proportional to 417,752.40, 626,628.60 and 122,264.40

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Solution

The fourth proportional to 417,752.40, 626,628.60 and 122,264.40 is: 183,396.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,752.40 : 626,628.60 = 122,264.40 : x
  2. Step 2: Convert to fraction form
    417,752.40/626,628.60 = 122,264.40/x
  3. Step 3: Cross multiply
    417,752.40x = 626,628.60 × 122,264.40
  4. Step 4: Simplify right side
    417,752.40x = 76,614,369,801.84
  5. Step 5: Solve for x
    x = 76,614,369,801.84/417,752.40
  6. Step 6: Final answer
    x = 183,396.60

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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.