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Finding the Fourth Proportional to 611,426.80, 917,269.80 and 184,927.60

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Solution

The fourth proportional to 611,426.80, 917,269.80 and 184,927.60 is: 277,430.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,426.80 : 917,269.80 = 184,927.60 : x
  2. Step 2: Convert to fraction form
    611,426.80/917,269.80 = 184,927.60/x
  3. Step 3: Cross multiply
    611,426.80x = 917,269.80 × 184,927.60
  4. Step 4: Simplify right side
    611,426.80x = 169,628,502,666.48
  5. Step 5: Solve for x
    x = 169,628,502,666.48/611,426.80
  6. Step 6: Final answer
    x = 277,430.60

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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.