Home / 813,208.17-1,122,233.91-450,638.10

Finding the Fourth Proportional to 813,208.17, 1,122,233.91 and 450,638.10

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Solution

The fourth proportional to 813,208.17, 1,122,233.91 and 450,638.10 is: 621,884.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,208.17 : 1,122,233.91 = 450,638.10 : x
  2. Step 2: Convert to fraction form
    813,208.17/1,122,233.91 = 450,638.10/x
  3. Step 3: Cross multiply
    813,208.17x = 1,122,233.91 × 450,638.10
  4. Step 4: Simplify right side
    813,208.17x = 505,721,356,957.97
  5. Step 5: Solve for x
    x = 505,721,356,957.97/813,208.17
  6. Step 6: Final answer
    x = 621,884.25

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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.