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Finding the Fourth Proportional to 650,164.10, 975,246.15 and 640,832.90

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Solution

The fourth proportional to 650,164.10, 975,246.15 and 640,832.90 is: 961,249.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,164.10 : 975,246.15 = 640,832.90 : x
  2. Step 2: Convert to fraction form
    650,164.10/975,246.15 = 640,832.90/x
  3. Step 3: Cross multiply
    650,164.10x = 975,246.15 × 640,832.90
  4. Step 4: Simplify right side
    650,164.10x = 624,969,818,518.34
  5. Step 5: Solve for x
    x = 624,969,818,518.34/650,164.10
  6. Step 6: Final answer
    x = 961,249.35

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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.