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Finding the Fourth Proportional to 611,421.80, 917,262.30 and 184,922.60

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Solution

The fourth proportional to 611,421.80, 917,262.30 and 184,922.60 is: 277,423.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,421.80 : 917,262.30 = 184,922.60 : x
  2. Step 2: Convert to fraction form
    611,421.80/917,262.30 = 184,922.60/x
  3. Step 3: Cross multiply
    611,421.80x = 917,262.30 × 184,922.60
  4. Step 4: Simplify right side
    611,421.80x = 169,622,529,397.98
  5. Step 5: Solve for x
    x = 169,622,529,397.98/611,421.80
  6. Step 6: Final answer
    x = 277,423.10

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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.