Home / 1,389,007.20-2,083,510.80-547,125.60

Finding the Fourth Proportional to 1,389,007.20, 2,083,510.80 and 547,125.60

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Solution

The fourth proportional to 1,389,007.20, 2,083,510.80 and 547,125.60 is: 820,688.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,007.20 : 2,083,510.80 = 547,125.60 : x
  2. Step 2: Convert to fraction form
    1,389,007.20/2,083,510.80 = 547,125.60/x
  3. Step 3: Cross multiply
    1,389,007.20x = 2,083,510.80 × 547,125.60
  4. Step 4: Simplify right side
    1,389,007.20x = 1,139,942,096,556.48
  5. Step 5: Solve for x
    x = 1,139,942,096,556.48/1,389,007.20
  6. Step 6: Final answer
    x = 820,688.40

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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.