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Finding the Fourth Proportional to 469,898.80, 705,066.90 and 245,512.60

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Solution

The fourth proportional to 469,898.80, 705,066.90 and 245,512.60 is: 368,383.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,898.80 : 705,066.90 = 245,512.60 : x
  2. Step 2: Convert to fraction form
    469,898.80/705,066.90 = 245,512.60/x
  3. Step 3: Cross multiply
    469,898.80x = 705,066.90 × 245,512.60
  4. Step 4: Simplify right side
    469,898.80x = 173,102,807,792.94
  5. Step 5: Solve for x
    x = 173,102,807,792.94/469,898.80
  6. Step 6: Final answer
    x = 368,383.17

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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.