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Finding the Fourth Proportional to 622,995.60, 934,493.40 and 410,419.20

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Solution

The fourth proportional to 622,995.60, 934,493.40 and 410,419.20 is: 615,628.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,995.60 : 934,493.40 = 410,419.20 : x
  2. Step 2: Convert to fraction form
    622,995.60/934,493.40 = 410,419.20/x
  3. Step 3: Cross multiply
    622,995.60x = 934,493.40 × 410,419.20
  4. Step 4: Simplify right side
    622,995.60x = 383,534,033,633.28
  5. Step 5: Solve for x
    x = 383,534,033,633.28/622,995.60
  6. Step 6: Final answer
    x = 615,628.80

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Double scale
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Similar ratio
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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.