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Finding the Fourth Proportional to 611,384.80, 917,206.80 and 184,885.60

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Solution

The fourth proportional to 611,384.80, 917,206.80 and 184,885.60 is: 277,367.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,384.80 : 917,206.80 = 184,885.60 : x
  2. Step 2: Convert to fraction form
    611,384.80/917,206.80 = 184,885.60/x
  3. Step 3: Cross multiply
    611,384.80x = 917,206.80 × 184,885.60
  4. Step 4: Simplify right side
    611,384.80x = 169,578,329,542.08
  5. Step 5: Solve for x
    x = 169,578,329,542.08/611,384.80
  6. Step 6: Final answer
    x = 277,367.59

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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.