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Finding the Fourth Proportional to 614,390.55, 920,861.81 and 277,036.23

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Solution

The fourth proportional to 614,390.55, 920,861.81 and 277,036.23 is: 415,227.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,390.55 : 920,861.81 = 277,036.23 : x
  2. Step 2: Convert to fraction form
    614,390.55/920,861.81 = 277,036.23/x
  3. Step 3: Cross multiply
    614,390.55x = 920,861.81 × 277,036.23
  4. Step 4: Simplify right side
    614,390.55x = 255,112,088,858.64
  5. Step 5: Solve for x
    x = 255,112,088,858.64/614,390.55
  6. Step 6: Final answer
    x = 415,227.88

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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.