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Finding the Fourth Proportional to 562,337.40, 775,472.64 and 515,659.97

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Solution

The fourth proportional to 562,337.40, 775,472.64 and 515,659.97 is: 711,103.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,337.40 : 775,472.64 = 515,659.97 : x
  2. Step 2: Convert to fraction form
    562,337.40/775,472.64 = 515,659.97/x
  3. Step 3: Cross multiply
    562,337.40x = 775,472.64 × 515,659.97
  4. Step 4: Simplify right side
    562,337.40x = 399,880,198,283.18
  5. Step 5: Solve for x
    x = 399,880,198,283.18/562,337.40
  6. Step 6: Final answer
    x = 711,103.68

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1.5x scale

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.