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Finding the Fourth Proportional to 451,165.04, 622,607.88 and 247,214.30

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Solution

The fourth proportional to 451,165.04, 622,607.88 and 247,214.30 is: 341,155.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,165.04 : 622,607.88 = 247,214.30 : x
  2. Step 2: Convert to fraction form
    451,165.04/622,607.88 = 247,214.30/x
  3. Step 3: Cross multiply
    451,165.04x = 622,607.88 × 247,214.30
  4. Step 4: Simplify right side
    451,165.04x = 153,917,569,042.70
  5. Step 5: Solve for x
    x = 153,917,569,042.70/451,165.04
  6. Step 6: Final answer
    x = 341,155.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.