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Finding the Fourth Proportional to 316,259.19, 436,437.24 and 173,019.24

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Solution

The fourth proportional to 316,259.19, 436,437.24 and 173,019.24 is: 238,766.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,259.19 : 436,437.24 = 173,019.24 : x
  2. Step 2: Convert to fraction form
    316,259.19/436,437.24 = 173,019.24/x
  3. Step 3: Cross multiply
    316,259.19x = 436,437.24 × 173,019.24
  4. Step 4: Simplify right side
    316,259.19x = 75,512,038,923.68
  5. Step 5: Solve for x
    x = 75,512,038,923.68/316,259.19
  6. Step 6: Final answer
    x = 238,766.31

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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.