Home / 645,873,154.40-968,809,731.60-531,081,898.40

Finding the Fourth Proportional to 645,873,154.40, 968,809,731.60 and 531,081,898.40

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Solution

The fourth proportional to 645,873,154.40, 968,809,731.60 and 531,081,898.40 is: 796,622,847.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,873,154.40 : 968,809,731.60 = 531,081,898.40 : x
  2. Step 2: Convert to fraction form
    645,873,154.40/968,809,731.60 = 531,081,898.40/x
  3. Step 3: Cross multiply
    645,873,154.40x = 968,809,731.60 × 531,081,898.40
  4. Step 4: Simplify right side
    645,873,154.40x = 514,517,311,446,522,432
  5. Step 5: Solve for x
    x = 514,517,311,446,522,432/645,873,154.40
  6. Step 6: Final answer
    x = 796,622,847.60

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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.