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Finding the Fourth Proportional to 633,153.60, 873,835.20 and 361,159.20

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Solution

The fourth proportional to 633,153.60, 873,835.20 and 361,159.20 is: 498,447.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,153.60 : 873,835.20 = 361,159.20 : x
  2. Step 2: Convert to fraction form
    633,153.60/873,835.20 = 361,159.20/x
  3. Step 3: Cross multiply
    633,153.60x = 873,835.20 × 361,159.20
  4. Step 4: Simplify right side
    633,153.60x = 315,593,621,763.84
  5. Step 5: Solve for x
    x = 315,593,621,763.84/633,153.60
  6. Step 6: Final answer
    x = 498,447.17

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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.