Home / 1,178,135.40-1,768,124.70-547,127.40

Finding the Fourth Proportional to 1,178,135.40, 1,768,124.70 and 547,127.40

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Solution

The fourth proportional to 1,178,135.40, 1,768,124.70 and 547,127.40 is: 821,119.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,135.40 : 1,768,124.70 = 547,127.40 : x
  2. Step 2: Convert to fraction form
    1,178,135.40/1,768,124.70 = 547,127.40/x
  3. Step 3: Cross multiply
    1,178,135.40x = 1,768,124.70 × 547,127.40
  4. Step 4: Simplify right side
    1,178,135.40x = 967,389,469,986.78
  5. Step 5: Solve for x
    x = 967,389,469,986.78/1,178,135.40
  6. Step 6: Final answer
    x = 821,119.09

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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.