Home / 821,300.28-1,133,417.23-453,801.09

Finding the Fourth Proportional to 821,300.28, 1,133,417.23 and 453,801.09

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Solution

The fourth proportional to 821,300.28, 1,133,417.23 and 453,801.09 is: 626,258.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,300.28 : 1,133,417.23 = 453,801.09 : x
  2. Step 2: Convert to fraction form
    821,300.28/1,133,417.23 = 453,801.09/x
  3. Step 3: Cross multiply
    821,300.28x = 1,133,417.23 × 453,801.09
  4. Step 4: Simplify right side
    821,300.28x = 514,345,979,908.45
  5. Step 5: Solve for x
    x = 514,345,979,908.45/821,300.28
  6. Step 6: Final answer
    x = 626,258.14

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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.