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Finding the Fourth Proportional to 339,478.68, 468,480.70 and 186,526.64

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Solution

The fourth proportional to 339,478.68, 468,480.70 and 186,526.64 is: 257,406.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,478.68 : 468,480.70 = 186,526.64 : x
  2. Step 2: Convert to fraction form
    339,478.68/468,480.70 = 186,526.64/x
  3. Step 3: Cross multiply
    339,478.68x = 468,480.70 × 186,526.64
  4. Step 4: Simplify right side
    339,478.68x = 87,384,130,875.85
  5. Step 5: Solve for x
    x = 87,384,130,875.85/339,478.68
  6. Step 6: Final answer
    x = 257,406.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.