Home / 808,587,249.42-1,115,850,405.96-437,309,280.75

Finding the Fourth Proportional to 808,587,249.42, 1,115,850,405.96 and 437,309,280.75

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Solution

The fourth proportional to 808,587,249.42, 1,115,850,405.96 and 437,309,280.75 is: 603,486,808.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,587,249.42 : 1,115,850,405.96 = 437,309,280.75 : x
  2. Step 2: Convert to fraction form
    808,587,249.42/1,115,850,405.96 = 437,309,280.75/x
  3. Step 3: Cross multiply
    808,587,249.42x = 1,115,850,405.96 × 437,309,280.75
  4. Step 4: Simplify right side
    808,587,249.42x = 487,971,738,454,963,136
  5. Step 5: Solve for x
    x = 487,971,738,454,963,136/808,587,249.42
  6. Step 6: Final answer
    x = 603,486,808.39

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Double scale
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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.