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Finding the Fourth Proportional to 292,772.40, 439,161.72 and 103,197.44

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Solution

The fourth proportional to 292,772.40, 439,161.72 and 103,197.44 is: 154,797.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,772.40 : 439,161.72 = 103,197.44 : x
  2. Step 2: Convert to fraction form
    292,772.40/439,161.72 = 103,197.44/x
  3. Step 3: Cross multiply
    292,772.40x = 439,161.72 × 103,197.44
  4. Step 4: Simplify right side
    292,772.40x = 45,320,366,831.64
  5. Step 5: Solve for x
    x = 45,320,366,831.64/292,772.40
  6. Step 6: Final answer
    x = 154,797.27

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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.