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Finding the Fourth Proportional to 621,913.32, 933,331.14 and 462,358.44

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Solution

The fourth proportional to 621,913.32, 933,331.14 and 462,358.44 is: 693,880.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,913.32 : 933,331.14 = 462,358.44 : x
  2. Step 2: Convert to fraction form
    621,913.32/933,331.14 = 462,358.44/x
  3. Step 3: Cross multiply
    621,913.32x = 933,331.14 × 462,358.44
  4. Step 4: Simplify right side
    621,913.32x = 431,533,529,893.82
  5. Step 5: Solve for x
    x = 431,533,529,893.82/621,913.32
  6. Step 6: Final answer
    x = 693,880.51

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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.