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Finding the Fourth Proportional to 560,873.66, 841,421.39 and 205,890.75

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Solution

The fourth proportional to 560,873.66, 841,421.39 and 205,890.75 is: 308,876.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,873.66 : 841,421.39 = 205,890.75 : x
  2. Step 2: Convert to fraction form
    560,873.66/841,421.39 = 205,890.75/x
  3. Step 3: Cross multiply
    560,873.66x = 841,421.39 × 205,890.75
  4. Step 4: Simplify right side
    560,873.66x = 173,240,880,023.69
  5. Step 5: Solve for x
    x = 173,240,880,023.69/560,873.66
  6. Step 6: Final answer
    x = 308,876.84

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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.