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Finding the Fourth Proportional to 573,357.07, 791,237.89 and 311,712.92

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Solution

The fourth proportional to 573,357.07, 791,237.89 and 311,712.92 is: 430,166.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,357.07 : 791,237.89 = 311,712.92 : x
  2. Step 2: Convert to fraction form
    573,357.07/791,237.89 = 311,712.92/x
  3. Step 3: Cross multiply
    573,357.07x = 791,237.89 × 311,712.92
  4. Step 4: Simplify right side
    573,357.07x = 246,639,073,106.54
  5. Step 5: Solve for x
    x = 246,639,073,106.54/573,357.07
  6. Step 6: Final answer
    x = 430,166.62

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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.