Home / 876,193.28-1,209,183.36-553,786.28

Finding the Fourth Proportional to 876,193.28, 1,209,183.36 and 553,786.28

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Solution

The fourth proportional to 876,193.28, 1,209,183.36 and 553,786.28 is: 764,248.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,193.28 : 1,209,183.36 = 553,786.28 : x
  2. Step 2: Convert to fraction form
    876,193.28/1,209,183.36 = 553,786.28/x
  3. Step 3: Cross multiply
    876,193.28x = 1,209,183.36 × 553,786.28
  4. Step 4: Simplify right side
    876,193.28x = 669,629,154,772.30
  5. Step 5: Solve for x
    x = 669,629,154,772.30/876,193.28
  6. Step 6: Final answer
    x = 764,248.22

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.