Home / 319,725.60-441,221.40-176,485.72

Finding the Fourth Proportional to 319,725.60, 441,221.40 and 176,485.72

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Solution

The fourth proportional to 319,725.60, 441,221.40 and 176,485.72 is: 243,550.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,725.60 : 441,221.40 = 176,485.72 : x
  2. Step 2: Convert to fraction form
    319,725.60/441,221.40 = 176,485.72/x
  3. Step 3: Cross multiply
    319,725.60x = 441,221.40 × 176,485.72
  4. Step 4: Simplify right side
    319,725.60x = 77,869,276,458.41
  5. Step 5: Solve for x
    x = 77,869,276,458.41/319,725.60
  6. Step 6: Final answer
    x = 243,550.33

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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.