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Finding the Fourth Proportional to 456,332.16, 629,722.56 and 255,127.68

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Solution

The fourth proportional to 456,332.16, 629,722.56 and 255,127.68 is: 352,067.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,332.16 : 629,722.56 = 255,127.68 : x
  2. Step 2: Convert to fraction form
    456,332.16/629,722.56 = 255,127.68/x
  3. Step 3: Cross multiply
    456,332.16x = 629,722.56 × 255,127.68
  4. Step 4: Simplify right side
    456,332.16x = 160,659,655,776.46
  5. Step 5: Solve for x
    x = 160,659,655,776.46/456,332.16
  6. Step 6: Final answer
    x = 352,067.35

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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.