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Finding the Fourth Proportional to 622,841.16, 859,520.68 and 336,361.20

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Solution

The fourth proportional to 622,841.16, 859,520.68 and 336,361.20 is: 464,178.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,841.16 : 859,520.68 = 336,361.20 : x
  2. Step 2: Convert to fraction form
    622,841.16/859,520.68 = 336,361.20/x
  3. Step 3: Cross multiply
    622,841.16x = 859,520.68 × 336,361.20
  4. Step 4: Simplify right side
    622,841.16x = 289,109,407,349.62
  5. Step 5: Solve for x
    x = 289,109,407,349.62/622,841.16
  6. Step 6: Final answer
    x = 464,178.39

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.