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Finding the Fourth Proportional to 553,853.63, 830,780.44 and 174,803.85

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Solution

The fourth proportional to 553,853.63, 830,780.44 and 174,803.85 is: 262,205.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,853.63 : 830,780.44 = 174,803.85 : x
  2. Step 2: Convert to fraction form
    553,853.63/830,780.44 = 174,803.85/x
  3. Step 3: Cross multiply
    553,853.63x = 830,780.44 × 174,803.85
  4. Step 4: Simplify right side
    553,853.63x = 145,223,618,979.68
  5. Step 5: Solve for x
    x = 145,223,618,979.68/553,853.63
  6. Step 6: Final answer
    x = 262,205.77

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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.