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Finding the Fourth Proportional to 369,219.36, 553,991.85 and 353,275.86

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Solution

The fourth proportional to 369,219.36, 553,991.85 and 353,275.86 is: 530,069.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,219.36 : 553,991.85 = 353,275.86 : x
  2. Step 2: Convert to fraction form
    369,219.36/553,991.85 = 353,275.86/x
  3. Step 3: Cross multiply
    369,219.36x = 553,991.85 × 353,275.86
  4. Step 4: Simplify right side
    369,219.36x = 195,711,947,241.74
  5. Step 5: Solve for x
    x = 195,711,947,241.74/369,219.36
  6. Step 6: Final answer
    x = 530,069.57

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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.