Home / 1,143,541.55-1,578,089.78-627,299.69

Finding the Fourth Proportional to 1,143,541.55, 1,578,089.78 and 627,299.69

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Solution

The fourth proportional to 1,143,541.55, 1,578,089.78 and 627,299.69 is: 865,674.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,541.55 : 1,578,089.78 = 627,299.69 : x
  2. Step 2: Convert to fraction form
    1,143,541.55/1,578,089.78 = 627,299.69/x
  3. Step 3: Cross multiply
    1,143,541.55x = 1,578,089.78 × 627,299.69
  4. Step 4: Simplify right side
    1,143,541.55x = 989,935,221,895.72
  5. Step 5: Solve for x
    x = 989,935,221,895.72/1,143,541.55
  6. Step 6: Final answer
    x = 865,674.90

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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.