Home / 645,873,343.40-968,810,015.10-531,082,087.40

Finding the Fourth Proportional to 645,873,343.40, 968,810,015.10 and 531,082,087.40

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Solution

The fourth proportional to 645,873,343.40, 968,810,015.10 and 531,082,087.40 is: 796,623,131.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,873,343.40 : 968,810,015.10 = 531,082,087.40 : x
  2. Step 2: Convert to fraction form
    645,873,343.40/968,810,015.10 = 531,082,087.40/x
  3. Step 3: Cross multiply
    645,873,343.40x = 968,810,015.10 × 531,082,087.40
  4. Step 4: Simplify right side
    645,873,343.40x = 514,517,645,113,333,504
  5. Step 5: Solve for x
    x = 514,517,645,113,333,504/645,873,343.40
  6. Step 6: Final answer
    x = 796,623,131.10

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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.