Home / 704,076,355.20-1,056,114,532.80-643,560,412.80

Finding the Fourth Proportional to 704,076,355.20, 1,056,114,532.80 and 643,560,412.80

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Solution

The fourth proportional to 704,076,355.20, 1,056,114,532.80 and 643,560,412.80 is: 965,340,619.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,076,355.20 : 1,056,114,532.80 = 643,560,412.80 : x
  2. Step 2: Convert to fraction form
    704,076,355.20/1,056,114,532.80 = 643,560,412.80/x
  3. Step 3: Cross multiply
    704,076,355.20x = 1,056,114,532.80 × 643,560,412.80
  4. Step 4: Simplify right side
    704,076,355.20x = 679,673,504,692,847,104
  5. Step 5: Solve for x
    x = 679,673,504,692,847,104/704,076,355.20
  6. Step 6: Final answer
    x = 965,340,619.20

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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.