Home / 643,576,812.80-965,365,219.20-593,188,332.80

Finding the Fourth Proportional to 643,576,812.80, 965,365,219.20 and 593,188,332.80

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Solution

The fourth proportional to 643,576,812.80, 965,365,219.20 and 593,188,332.80 is: 889,782,499.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,576,812.80 : 965,365,219.20 = 593,188,332.80 : x
  2. Step 2: Convert to fraction form
    643,576,812.80/965,365,219.20 = 593,188,332.80/x
  3. Step 3: Cross multiply
    643,576,812.80x = 965,365,219.20 × 593,188,332.80
  4. Step 4: Simplify right side
    643,576,812.80x = 572,643,384,920,354,560
  5. Step 5: Solve for x
    x = 572,643,384,920,354,560/643,576,812.80
  6. Step 6: Final answer
    x = 889,782,499.20

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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.