Home / 821,301.78-1,133,419.31-453,802.59

Finding the Fourth Proportional to 821,301.78, 1,133,419.31 and 453,802.59

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Solution

The fourth proportional to 821,301.78, 1,133,419.31 and 453,802.59 is: 626,260.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,301.78 : 1,133,419.31 = 453,802.59 : x
  2. Step 2: Convert to fraction form
    821,301.78/1,133,419.31 = 453,802.59/x
  3. Step 3: Cross multiply
    821,301.78x = 1,133,419.31 × 453,802.59
  4. Step 4: Simplify right side
    821,301.78x = 514,348,616,165.00
  5. Step 5: Solve for x
    x = 514,348,616,165.00/821,301.78
  6. Step 6: Final answer
    x = 626,260.20

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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.