Home / 643,001.12-964,501.68-222,047.36

Finding the Fourth Proportional to 643,001.12, 964,501.68 and 222,047.36

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Solution

The fourth proportional to 643,001.12, 964,501.68 and 222,047.36 is: 333,071.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,001.12 : 964,501.68 = 222,047.36 : x
  2. Step 2: Convert to fraction form
    643,001.12/964,501.68 = 222,047.36/x
  3. Step 3: Cross multiply
    643,001.12x = 964,501.68 × 222,047.36
  4. Step 4: Simplify right side
    643,001.12x = 214,165,051,759.57
  5. Step 5: Solve for x
    x = 214,165,051,759.57/643,001.12
  6. Step 6: Final answer
    x = 333,071.04

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.