Home / 1,718,689.76-2,578,165.85-520,711.30

Finding the Fourth Proportional to 1,718,689.76, 2,578,165.85 and 520,711.30

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Solution

The fourth proportional to 1,718,689.76, 2,578,165.85 and 520,711.30 is: 781,106.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,718,689.76 : 2,578,165.85 = 520,711.30 : x
  2. Step 2: Convert to fraction form
    1,718,689.76/2,578,165.85 = 520,711.30/x
  3. Step 3: Cross multiply
    1,718,689.76x = 2,578,165.85 × 520,711.30
  4. Step 4: Simplify right side
    1,718,689.76x = 1,342,480,091,369.11
  5. Step 5: Solve for x
    x = 1,342,480,091,369.11/1,718,689.76
  6. Step 6: Final answer
    x = 781,106.70

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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.