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Finding the Fourth Proportional to 612,675.60, 919,099.80 and 191,907.60

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Solution

The fourth proportional to 612,675.60, 919,099.80 and 191,907.60 is: 287,888.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,675.60 : 919,099.80 = 191,907.60 : x
  2. Step 2: Convert to fraction form
    612,675.60/919,099.80 = 191,907.60/x
  3. Step 3: Cross multiply
    612,675.60x = 919,099.80 × 191,907.60
  4. Step 4: Simplify right side
    612,675.60x = 176,382,236,778.48
  5. Step 5: Solve for x
    x = 176,382,236,778.48/612,675.60
  6. Step 6: Final answer
    x = 287,888.46

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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.