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Finding the Fourth Proportional to 622,808.10, 934,212.15 and 610,998.30

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Solution

The fourth proportional to 622,808.10, 934,212.15 and 610,998.30 is: 916,497.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,808.10 : 934,212.15 = 610,998.30 : x
  2. Step 2: Convert to fraction form
    622,808.10/934,212.15 = 610,998.30/x
  3. Step 3: Cross multiply
    622,808.10x = 934,212.15 × 610,998.30
  4. Step 4: Simplify right side
    622,808.10x = 570,802,035,489.35
  5. Step 5: Solve for x
    x = 570,802,035,489.35/622,808.10
  6. Step 6: Final answer
    x = 916,497.45

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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.