Home / 691,463.18-954,149.22-385,510.59

Finding the Fourth Proportional to 691,463.18, 954,149.22 and 385,510.59

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Solution

The fourth proportional to 691,463.18, 954,149.22 and 385,510.59 is: 531,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,463.18 : 954,149.22 = 385,510.59 : x
  2. Step 2: Convert to fraction form
    691,463.18/954,149.22 = 385,510.59/x
  3. Step 3: Cross multiply
    691,463.18x = 954,149.22 × 385,510.59
  4. Step 4: Simplify right side
    691,463.18x = 367,834,628,750.24
  5. Step 5: Solve for x
    x = 367,834,628,750.24/691,463.18
  6. Step 6: Final answer
    x = 531,965.60

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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.