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Finding the Fourth Proportional to 369,107.40, 553,661.10 and 302,622.60

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Solution

The fourth proportional to 369,107.40, 553,661.10 and 302,622.60 is: 453,933.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,107.40 : 553,661.10 = 302,622.60 : x
  2. Step 2: Convert to fraction form
    369,107.40/553,661.10 = 302,622.60/x
  3. Step 3: Cross multiply
    369,107.40x = 553,661.10 × 302,622.60
  4. Step 4: Simplify right side
    369,107.40x = 167,550,361,600.86
  5. Step 5: Solve for x
    x = 167,550,361,600.86/369,107.40
  6. Step 6: Final answer
    x = 453,933.90

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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.