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Finding the Fourth Proportional to 663,638.16, 993,907.11 and 610,051.20

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Solution

The fourth proportional to 663,638.16, 993,907.11 and 610,051.20 is: 913,651.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,638.16 : 993,907.11 = 610,051.20 : x
  2. Step 2: Convert to fraction form
    663,638.16/993,907.11 = 610,051.20/x
  3. Step 3: Cross multiply
    663,638.16x = 993,907.11 × 610,051.20
  4. Step 4: Simplify right side
    663,638.16x = 606,334,225,144.03
  5. Step 5: Solve for x
    x = 606,334,225,144.03/663,638.16
  6. Step 6: Final answer
    x = 913,651.84

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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.