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Finding the Fourth Proportional to 619,004.88, 854,599.32 and 404,503.92

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Solution

The fourth proportional to 619,004.88, 854,599.32 and 404,503.92 is: 558,458.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,004.88 : 854,599.32 = 404,503.92 : x
  2. Step 2: Convert to fraction form
    619,004.88/854,599.32 = 404,503.92/x
  3. Step 3: Cross multiply
    619,004.88x = 854,599.32 × 404,503.92
  4. Step 4: Simplify right side
    619,004.88x = 345,688,774,969.33
  5. Step 5: Solve for x
    x = 345,688,774,969.33/619,004.88
  6. Step 6: Final answer
    x = 558,458.88

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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.