Home / 528,787,730.40-792,677,710.80-412,138,399.20

Finding the Fourth Proportional to 528,787,730.40, 792,677,710.80 and 412,138,399.20

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Solution

The fourth proportional to 528,787,730.40, 792,677,710.80 and 412,138,399.20 is: 617,814,869.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,787,730.40 : 792,677,710.80 = 412,138,399.20 : x
  2. Step 2: Convert to fraction form
    528,787,730.40/792,677,710.80 = 412,138,399.20/x
  3. Step 3: Cross multiply
    528,787,730.40x = 792,677,710.80 × 412,138,399.20
  4. Step 4: Simplify right side
    528,787,730.40x = 326,692,922,810,632,512
  5. Step 5: Solve for x
    x = 326,692,922,810,632,512/528,787,730.40
  6. Step 6: Final answer
    x = 617,814,869.80

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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.