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Finding the Fourth Proportional to 316,809.04, 475,155.88 and 127,261.75

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Solution

The fourth proportional to 316,809.04, 475,155.88 and 127,261.75 is: 190,869.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,809.04 : 475,155.88 = 127,261.75 : x
  2. Step 2: Convert to fraction form
    316,809.04/475,155.88 = 127,261.75/x
  3. Step 3: Cross multiply
    316,809.04x = 475,155.88 × 127,261.75
  4. Step 4: Simplify right side
    316,809.04x = 60,469,168,811.59
  5. Step 5: Solve for x
    x = 60,469,168,811.59/316,809.04
  6. Step 6: Final answer
    x = 190,869.46

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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.