Home / 499,488.89-693,944.10-493,510.19

Finding the Fourth Proportional to 499,488.89, 693,944.10 and 493,510.19

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Solution

The fourth proportional to 499,488.89, 693,944.10 and 493,510.19 is: 685,637.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,488.89 : 693,944.10 = 493,510.19 : x
  2. Step 2: Convert to fraction form
    499,488.89/693,944.10 = 493,510.19/x
  3. Step 3: Cross multiply
    499,488.89x = 693,944.10 × 493,510.19
  4. Step 4: Simplify right side
    499,488.89x = 342,468,481,170.66
  5. Step 5: Solve for x
    x = 342,468,481,170.66/499,488.89
  6. Step 6: Final answer
    x = 685,637.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.