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Finding the Fourth Proportional to 693,370.71, 956,946.61 and 399,014.37

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Solution

The fourth proportional to 693,370.71, 956,946.61 and 399,014.37 is: 550,694.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,370.71 : 956,946.61 = 399,014.37 : x
  2. Step 2: Convert to fraction form
    693,370.71/956,946.61 = 399,014.37/x
  3. Step 3: Cross multiply
    693,370.71x = 956,946.61 × 399,014.37
  4. Step 4: Simplify right side
    693,370.71x = 381,835,448,712.79
  5. Step 5: Solve for x
    x = 381,835,448,712.79/693,370.71
  6. Step 6: Final answer
    x = 550,694.52

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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.