Home / 319,709.07-441,039.29-223,115.49

Finding the Fourth Proportional to 319,709.07, 441,039.29 and 223,115.49

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Solution

The fourth proportional to 319,709.07, 441,039.29 and 223,115.49 is: 307,788.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,709.07 : 441,039.29 = 223,115.49 : x
  2. Step 2: Convert to fraction form
    319,709.07/441,039.29 = 223,115.49/x
  3. Step 3: Cross multiply
    319,709.07x = 441,039.29 × 223,115.49
  4. Step 4: Simplify right side
    319,709.07x = 98,402,696,182.02
  5. Step 5: Solve for x
    x = 98,402,696,182.02/319,709.07
  6. Step 6: Final answer
    x = 307,788.25

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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.