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Finding the Fourth Proportional to 1,143,894, 1,715,797.92 and 345,154.32

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Solution

The fourth proportional to 1,143,894, 1,715,797.92 and 345,154.32 is: 517,718.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,894 : 1,715,797.92 = 345,154.32 : x
  2. Step 2: Convert to fraction form
    1,143,894/1,715,797.92 = 345,154.32/x
  3. Step 3: Cross multiply
    1,143,894x = 1,715,797.92 × 345,154.32
  4. Step 4: Simplify right side
    1,143,894x = 592,215,064,335.01
  5. Step 5: Solve for x
    x = 592,215,064,335.01/1,143,894
  6. Step 6: Final answer
    x = 517,718.48

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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.