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Finding the Fourth Proportional to 553,624.45, 830,436.64 and 132,900.32

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Solution

The fourth proportional to 553,624.45, 830,436.64 and 132,900.32 is: 199,350.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,624.45 : 830,436.64 = 132,900.32 : x
  2. Step 2: Convert to fraction form
    553,624.45/830,436.64 = 132,900.32/x
  3. Step 3: Cross multiply
    553,624.45x = 830,436.64 × 132,900.32
  4. Step 4: Simplify right side
    553,624.45x = 110,365,296,939.57
  5. Step 5: Solve for x
    x = 110,365,296,939.57/553,624.45
  6. Step 6: Final answer
    x = 199,350.48

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1.5x scale

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.