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Finding the Fourth Proportional to 310,923.20, 466,039.20 and 170,782.40

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Solution

The fourth proportional to 310,923.20, 466,039.20 and 170,782.40 is: 255,983.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,923.20 : 466,039.20 = 170,782.40 : x
  2. Step 2: Convert to fraction form
    310,923.20/466,039.20 = 170,782.40/x
  3. Step 3: Cross multiply
    310,923.20x = 466,039.20 × 170,782.40
  4. Step 4: Simplify right side
    310,923.20x = 79,591,293,070.08
  5. Step 5: Solve for x
    x = 79,591,293,070.08/310,923.20
  6. Step 6: Final answer
    x = 255,983.77

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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.