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Finding the Fourth Proportional to 983,577, 1,474,490.19 and 384,401.91

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Solution

The fourth proportional to 983,577, 1,474,490.19 and 384,401.91 is: 576,260.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,577 : 1,474,490.19 = 384,401.91 : x
  2. Step 2: Convert to fraction form
    983,577/1,474,490.19 = 384,401.91/x
  3. Step 3: Cross multiply
    983,577x = 1,474,490.19 × 384,401.91
  4. Step 4: Simplify right side
    983,577x = 566,796,845,312.26
  5. Step 5: Solve for x
    x = 566,796,845,312.26/983,577
  6. Step 6: Final answer
    x = 576,260.78

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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.