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Finding the Fourth Proportional to 472,986.80, 709,917.60 and 236,499.20

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Solution

The fourth proportional to 472,986.80, 709,917.60 and 236,499.20 is: 354,967.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,986.80 : 709,917.60 = 236,499.20 : x
  2. Step 2: Convert to fraction form
    472,986.80/709,917.60 = 236,499.20/x
  3. Step 3: Cross multiply
    472,986.80x = 709,917.60 × 236,499.20
  4. Step 4: Simplify right side
    472,986.80x = 167,894,944,465.92
  5. Step 5: Solve for x
    x = 167,894,944,465.92/472,986.80
  6. Step 6: Final answer
    x = 354,967.51

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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.