Home / 395,985.11-546,426.80-223,920.66

Finding the Fourth Proportional to 395,985.11, 546,426.80 and 223,920.66

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Solution

The fourth proportional to 395,985.11, 546,426.80 and 223,920.66 is: 308,992.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,985.11 : 546,426.80 = 223,920.66 : x
  2. Step 2: Convert to fraction form
    395,985.11/546,426.80 = 223,920.66/x
  3. Step 3: Cross multiply
    395,985.11x = 546,426.80 × 223,920.66
  4. Step 4: Simplify right side
    395,985.11x = 122,356,248,578.09
  5. Step 5: Solve for x
    x = 122,356,248,578.09/395,985.11
  6. Step 6: Final answer
    x = 308,992.05

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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.