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Finding the Fourth Proportional to 612,113.20, 844,699.34 and 340,174.24

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Solution

The fourth proportional to 612,113.20, 844,699.34 and 340,174.24 is: 469,431.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,113.20 : 844,699.34 = 340,174.24 : x
  2. Step 2: Convert to fraction form
    612,113.20/844,699.34 = 340,174.24/x
  3. Step 3: Cross multiply
    612,113.20x = 844,699.34 × 340,174.24
  4. Step 4: Simplify right side
    612,113.20x = 287,344,956,013.00
  5. Step 5: Solve for x
    x = 287,344,956,013.00/612,113.20
  6. Step 6: Final answer
    x = 469,431.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.