Home / 1,718,784.76-2,578,166.90-439,390.20

Finding the Fourth Proportional to 1,718,784.76, 2,578,166.90 and 439,390.20

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Solution

The fourth proportional to 1,718,784.76, 2,578,166.90 and 439,390.20 is: 659,082.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,718,784.76 : 2,578,166.90 = 439,390.20 : x
  2. Step 2: Convert to fraction form
    1,718,784.76/2,578,166.90 = 439,390.20/x
  3. Step 3: Cross multiply
    1,718,784.76x = 2,578,166.90 × 439,390.20
  4. Step 4: Simplify right side
    1,718,784.76x = 1,132,821,269,824.38
  5. Step 5: Solve for x
    x = 1,132,821,269,824.38/1,718,784.76
  6. Step 6: Final answer
    x = 659,082.68

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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.