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Finding the Fourth Proportional to 706,674.50, 975,210.81 and 405,043.46

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Solution

The fourth proportional to 706,674.50, 975,210.81 and 405,043.46 is: 558,959.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,674.50 : 975,210.81 = 405,043.46 : x
  2. Step 2: Convert to fraction form
    706,674.50/975,210.81 = 405,043.46/x
  3. Step 3: Cross multiply
    706,674.50x = 975,210.81 × 405,043.46
  4. Step 4: Simplify right side
    706,674.50x = 395,002,760,711.80
  5. Step 5: Solve for x
    x = 395,002,760,711.80/706,674.50
  6. Step 6: Final answer
    x = 558,959.97

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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.