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Finding the Fourth Proportional to 611,101.88, 843,329.58 and 339,187.22

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Solution

The fourth proportional to 611,101.88, 843,329.58 and 339,187.22 is: 468,083.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,101.88 : 843,329.58 = 339,187.22 : x
  2. Step 2: Convert to fraction form
    611,101.88/843,329.58 = 339,187.22/x
  3. Step 3: Cross multiply
    611,101.88x = 843,329.58 × 339,187.22
  4. Step 4: Simplify right side
    611,101.88x = 286,046,615,783.97
  5. Step 5: Solve for x
    x = 286,046,615,783.97/611,101.88
  6. Step 6: Final answer
    x = 468,083.35

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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.