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Finding the Fourth Proportional to 316,443.95, 436,645.70 and 192,200.32

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Solution

The fourth proportional to 316,443.95, 436,645.70 and 192,200.32 is: 265,207.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,443.95 : 436,645.70 = 192,200.32 : x
  2. Step 2: Convert to fraction form
    316,443.95/436,645.70 = 192,200.32/x
  3. Step 3: Cross multiply
    316,443.95x = 436,645.70 × 192,200.32
  4. Step 4: Simplify right side
    316,443.95x = 83,923,441,214.01
  5. Step 5: Solve for x
    x = 83,923,441,214.01/316,443.95
  6. Step 6: Final answer
    x = 265,207.92

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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.