Home / 1,124,210-1,686,336.92-413,872.40

Finding the Fourth Proportional to 1,124,210, 1,686,336.92 and 413,872.40

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Solution

The fourth proportional to 1,124,210, 1,686,336.92 and 413,872.40 is: 620,816.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,210 : 1,686,336.92 = 413,872.40 : x
  2. Step 2: Convert to fraction form
    1,124,210/1,686,336.92 = 413,872.40/x
  3. Step 3: Cross multiply
    1,124,210x = 1,686,336.92 × 413,872.40
  4. Step 4: Simplify right side
    1,124,210x = 697,928,308,289.01
  5. Step 5: Solve for x
    x = 697,928,308,289.01/1,124,210
  6. Step 6: Final answer
    x = 620,816.67

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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.