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Finding the Fourth Proportional to 446,681.28, 616,170.64 and 274,479.60

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Solution

The fourth proportional to 446,681.28, 616,170.64 and 274,479.60 is: 378,628.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,681.28 : 616,170.64 = 274,479.60 : x
  2. Step 2: Convert to fraction form
    446,681.28/616,170.64 = 274,479.60/x
  3. Step 3: Cross multiply
    446,681.28x = 616,170.64 × 274,479.60
  4. Step 4: Simplify right side
    446,681.28x = 169,126,270,798.94
  5. Step 5: Solve for x
    x = 169,126,270,798.94/446,681.28
  6. Step 6: Final answer
    x = 378,628.52

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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.