Home / 624,080,678.40-936,121,017.60-317,970,662.40

Finding the Fourth Proportional to 624,080,678.40, 936,121,017.60 and 317,970,662.40

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Solution

The fourth proportional to 624,080,678.40, 936,121,017.60 and 317,970,662.40 is: 476,955,993.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,080,678.40 : 936,121,017.60 = 317,970,662.40 : x
  2. Step 2: Convert to fraction form
    624,080,678.40/936,121,017.60 = 317,970,662.40/x
  3. Step 3: Cross multiply
    624,080,678.40x = 936,121,017.60 × 317,970,662.40
  4. Step 4: Simplify right side
    624,080,678.40x = 297,659,020,052,834,048
  5. Step 5: Solve for x
    x = 297,659,020,052,834,048/624,080,678.40
  6. Step 6: Final answer
    x = 476,955,993.60

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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.