Home / 1,143,591-1,715,337-385,382.40

Finding the Fourth Proportional to 1,143,591, 1,715,337 and 385,382.40

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Solution

The fourth proportional to 1,143,591, 1,715,337 and 385,382.40 is: 578,056.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,591 : 1,715,337 = 385,382.40 : x
  2. Step 2: Convert to fraction form
    1,143,591/1,715,337 = 385,382.40/x
  3. Step 3: Cross multiply
    1,143,591x = 1,715,337 × 385,382.40
  4. Step 4: Simplify right side
    1,143,591x = 661,060,689,868.80
  5. Step 5: Solve for x
    x = 661,060,689,868.80/1,143,591
  6. Step 6: Final answer
    x = 578,056.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.