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Finding the Fourth Proportional to 472,837.20, 709,255.80 and 224,005.20

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Solution

The fourth proportional to 472,837.20, 709,255.80 and 224,005.20 is: 336,007.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,837.20 : 709,255.80 = 224,005.20 : x
  2. Step 2: Convert to fraction form
    472,837.20/709,255.80 = 224,005.20/x
  3. Step 3: Cross multiply
    472,837.20x = 709,255.80 × 224,005.20
  4. Step 4: Simplify right side
    472,837.20x = 158,876,987,330.16
  5. Step 5: Solve for x
    x = 158,876,987,330.16/472,837.20
  6. Step 6: Final answer
    x = 336,007.80

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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.