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Finding the Fourth Proportional to 622,396.20, 931,520.70 and 547,746.60

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Solution

The fourth proportional to 622,396.20, 931,520.70 and 547,746.60 is: 819,795.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,396.20 : 931,520.70 = 547,746.60 : x
  2. Step 2: Convert to fraction form
    622,396.20/931,520.70 = 547,746.60/x
  3. Step 3: Cross multiply
    622,396.20x = 931,520.70 × 547,746.60
  4. Step 4: Simplify right side
    622,396.20x = 510,237,296,254.62
  5. Step 5: Solve for x
    x = 510,237,296,254.62/622,396.20
  6. Step 6: Final answer
    x = 819,795.01

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1.5x scale

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.